To be sure, risks abound; but no one is proposing compassionate stewardship of ecosystems by philosophers. Humans are capable of choosing our own future pain-sensitivity too; but any species-wide genomic shift in human pain tolerance will depend on the willingness of prospective parents to use preimplantation genetic screening.

I esteem myself happy to have as great an ally as you in my search for truth. I will read your work ... all the more willingly because I have for many years been a partisan of the Copernican view because it reveals to me the causes of many natural phenomena that are entirely incomprehensible in the light of the generally accepted hypothesis. To refute the latter I have collected many proofs, but I do not publish them, because I am deterred by the fate of our teacher Copernicus who, although he had won immortal fame with a few, was ridiculed and condemned by countless people (for very great is the number of the stupid).

The soul of man is divided into three parts, intelligence, reason, and passion. Intelligence and passion are possessed by other animals, but reason by man alone.

Nothing deserves to be undone, doubtless because nothing deserved to be done.

The discussion of the sexual problem is only a somewhat crude prelude to a far deeper question, and that is the question of the psychological relationship between the sexes. In comparison with this the other pales into insignificance, and with it we enter the real domain of woman. Woman's psychology is founded on the principle of Eros, the great binder and loosener, whereas from ancient times the ruling principle ascribed to man is Logos.

The more intense a spiritual leader's appetite for power, the more he is concerned to limit it to others.

I am sure, zeal or love for truth can never permit falsehood to be used in the defence of it.

A man of understanding has lost nothing, if he has himself.

I would rather sleep in the southern corner of a little country churchyard, than in the tombs of the Capulets.

God whispers to us in our pleasures, speaks in our conscience, but shouts in our pains: it is His megaphone to rouse a deaf world.

Non-literate societies cannot see films or photos without much training.

Brothers, love is a teacher; but one must know how to acquire it, for it is hard to acquire, it is dearly bought, it is won slowly by long labour. For we must love not only occasionally, for a moment, but for ever. Everyone can love occasionally, even the wicked can.

When we hear news, we should always wait for the sacrament of confirmation.

The next thing is by gentle degrees to accustom children to those things they are too much afraid of. But here great caution is to be used, that you do not make too much haste, nor attempt this cure too early, for fear lest you increase the mischief instead of remedying it.

A loving heart is the beginning of all knowledge.

The frontiers are not east or west, north or south, but wherever a man fronts a fact, though that fact be his neighbor, there is an unsettled wilderness between him and Canada, between him and the setting sun, or, farther still, between him and it.

When an astronomer tells me that some stellar phenomenon, which his telescope reveals to him at this moment, happened... fifty years ago... I... ask... how he has measured the velocity of light.

Like strawberry wives, that laid two or three great strawberries at the mouth of their pot, and all the rest were little ones.

These philosophers of the world place contrarieties in the same subject; for the one attributed greatness to nature and the other weakness to this same nature, which could not subsist; whilst faith teaches us to place them in different subjects: all that is infirm belonging to nature, all that is powerful belonging to grace. Such is the marvelous and novel union which God alone could teach, and which he alone could make, and which is only a type and an effect of the ineffable union of two natures in the single person of a Man-God.

"Say what you like," we shall be told, "the apocalyptic beliefs of the first Christians have been proved to be false. It is clear from the New Testament that they all expected the Second Coming in their own lifetime. And, worse still, they had a reason, and one which you will find very embarrassing. Their Master had told them so. He shared, and indeed created, their delusion. He said in so many words, 'this generation shall not pass till all these things be done.' And he was wrong. He clearly knew no more about the end of the world than anyone else." It is certainly the most embarrassing verse in the Bible.

So long as we love we serve; so long as we are loved by others, I would almost say that we are indispensable; and no man is useless while he has a friend.

Headlines are icons, not literature.

Crime in full glory consolidates authority by the sacred fear it inspires.

An atheist, like a Christian, holds that we can know whether or not there is a God. The Christian holds that we can know there is a God; the atheist, that we can know there is not. The Agnostic suspends judgment, saying that there are not sufficient grounds either for affirmation or for denial. At the same time, an Agnostic may hold that the existence of God, though not impossible, is very improbable; he may even hold it so improbable that it is not worth considering in practice. In that case, he is not far removed from atheism. His attitude may be that which a careful philosopher would have towards the gods of ancient Greece. If I were asked to prove that Zeus and Poseidon and Hera and the rest of the Olympians do not exist, I should be at a loss to find conclusive arguments. An Agnostic may think the Christian God as improbable as the Olympians; in that case, he is, for practical purposes, at one with the atheists.

We may well call it black diamonds. Every basket is power and civilization. For coal is a portable climate. It carries the heat of the tropics to Labrador and the polar circle; and it is the means of transporting itself withersoever it is wanted. Watt and Stephenson whispered in the ear of mankind their secret, that a half-ounce of coal will draw two tons a mile, and coal carries coal, by rail and by boat, to make Canada as warm as Calcutta, and with its comfort brings its industrial power.

Man cannot do without beauty, and this is what our era pretends to want to disregard. It steels itself to attain the absolute and authority; it wants to transfigure the world before having exhausted it, to set it to rights before having understood it. Whatever it may say, our era is deserting this world.

We don't need fossils - the case for evolution is watertight without them; so it is paradoxical to use gaps in the fossil record as though they were evidence against evolution.

I do not say this, that I think there should be no difference of opinions in conversation, nor opposition in men's discourses... 'Tis not the owning one's dissent from another, that I speak against, but the manner of doing it.

Repentance for one's evil deeds is the safeguard of life.

If people should ever start to do only what is necessary millions would die of hunger.

It was a rude gross error, that of counting the Great Man a god. Yet let us say that it is at all times difficult to know what he is, or how to account of him and receive him!

If you don't know how to die, don't worry; Nature will tell you what to do on the spot, fully and adequately. She will do this job perfectly for you; don't bother your head about it.

I soon perceived that she possessed in combination, the qualities which in all other persons whom I had known I had been only too happy to find singly. In her, complete emancipation from every kind of superstition (including that which attributes a pretended perfection to the order of nature and the universe), and an earnest protest against many things which are still part of the established constitution of society, resulted not from the hard intellect, but from strength of noble and elevated feeling, and co-existed with a highly reverential nature.

The fundamental sense of freedom is freedom from chains, from imprisonment, from enslavement by others. The rest is extension of this sense, or else metaphor.

If there were in the world today any large number of people who desired their own happiness more than they desired the unhappiness of others, we could have a paradise in a few years.

A noble person attracts noble people, and knows how to hold on to them.

Many words befall men, mean and noble alike; do not be astonished by them, nor allow yourself to be constrained. If a lie is told, bear with it gently. But whatever I tell you, let it be done completely. Let no one persuade you by word or deed to do or say whatever is not best for you.

It has no sense and cannot just unless it comes to terms with death. Mine as (well as) that of the other. Between life and death, then, this is indeed the place of a sententious injunction that always feigns to speak the just.

I have remarked very clearly that I am often of one opinion when I am lying down and of another when I am standing up.

In most cases the esthetic objection to doses of morals and of economic or political propaganda in works of art will be found upon analysis to reside in the over-weighing of certain values at the expense of others until, except for those in a similar stare of one-sides enthusiasm, weariness rather than refreshment sets in.

One of the great American tragedies is to have participated in a just war. It's been possible for politicians and movie-makers to encourage us we're always good guys. The Second World War absolutely had to be fought. I wouldn't have missed it for the world. But we never talk about the people we kill. This is never spoken of.

It is very likely that there are many, many planets carrying life, even intelligent life, throughout the universe, because there are so many stars. By sheer chance, even if those chances are small, a great many life forms and a great many intelligences may exist.

Nobody ever saw a dog make a fair and deliberate exchange of one bone for another with another dog.

And we feel that the hero has lived all the details of this night like annunciations, promises, or even that he lived only those that were promises, blind and deaf to all that did not herald adventure. We forget that the future was not yet there; the man was walking in the night without forethought, a night which offered him a choice of dull rich prizes, and he did not make his choice.

Let's go dance under the elms:

Step lively, young lassies.

Let's go dance under the elms:

Gallants, take up your pipes.

There is but one Temple in the World; and that is the Body of Man. Nothing is holier than this high form. Bending before men is a reverence done to this Revelation in the Flesh. We touch Heaven, when we lay our hand on a human body. Variant translation: There is but one temple in the Universe and that is the Body of Man.