Indeed, the drunken man while in that condition does not know the definition of drunkenness nor the scientific account of it; he has not the very least scientific knowledge of it. The sober man, on the other hand, knows the definition of drunkenness and its basis, yet he is not drunk in the very least. Again the doctor, when he is himself ill, knows the definition and causes of health and the remedies which restore it, and yet is lacking in health. Similarly there is a difference between knowing the true nature and causes and conditions of the ascetic life and actually leading such a life and forsaking the world.

There is the world for you. Beauty, true beauty, is intangible. It is in the eye of the beholder. Something that we can lose at any moment, and the more you examine it, the more illusive it becomes. True happiness is virtue, and virtue is predicated on knowledge and righteous conduct.

If you believe in the future life and, instead of preparing for it, sell it in order to buy this world, then that is folly! You do not normally sell two things for one; how can you give up an endless life for a limited number of days.

Knowledge that is not Infallible is not certain knowledge.

The man who makes his religion a means to the gaining of this world, will lose both worlds alike; whereas the man who gives up this world for the sake of religion, will get both worlds alike.

A grievous crime indeed against religion has been committed by the man who imagines that Islam is defended by the denial of the mathematical sciences.

How can even the lowest mind, if he reflects at all the marvels of this earth and sky, the brilliant fashioning of plants and animals, remain blind to the fact that this wonderful world with its settled order must have a maker to design, determine and direct it?

Do not know the truth by the men, but know the truth, and then you will know who are truthful.

We attest that He is the Willer of all things that are, the ruler of all originated phenomena; there does not come into the visible or invisible world anything meager or plenteous, small or great, good or evil, or any advantage or disadvantage, belief or unbelief, knowledge or ignorance, success or failure, increase or decrease, obedience or disobedience, except by His will. What He wills is, and what He does not, will not; there is not a glance of the eye, nor a stray thought of the heart that is not subject to His will. He is the Creator, the Restorer, the Doer of whatsoever He wills. There is none that rescinds His command, none that supplements His decrees, none that dissuades a servant from disobeying Him, except by His help and mercy, and none has power to obey Him except by His will.

The lowest degree of education is to distinguish oneself from the ignorant ordinary man. The educated man does not loathe honey even if he finds it in the surgeon's cupping-glass; he realizes that the cupping glass does not essentially alter the honey. The natural aversion from it in such a case rests on popular ignorance, arising from the fact that the cupping-glass is made only for impure blood. Men imagine that the blood is impure because it is in the cupping-glass, and are not aware that the impurity is due to a property.

A bad feeling is a commotion of the mind repugnant to reason, and against nature.

No one entrusts a secret to a drunken man; but one will entrust a secret to a good man; therefore, the good man will not get drunk.

That which exercises reason is more excellent than that which does not exercise reason; there is nothing more excellent than the universe, therefore the universe exercises reason.

(The end is) life in agreement with nature.

If melodiously piping flutes sprang from the olive, would you doubt that a knowledge of flute-playing resided in the olive? And what if plane trees bore harps which gave forth rhythmical sounds? Clearly you would think in the same way that the art of music was possessed by plane trees. Why, then, seeing that the universe gives birth to beings that are animate and wise, should it not be considered animate and wise itself?

Love is a God, who cooperates in securing the safety of the city.

All the good are friends of one another.

We have two ears and one mouth, so we should listen more than we say.

No evil is honorable; but death is honorable; therefore death is not evil.

Happiness is a good flow of life. 

Place is the greatest thing, as it contains all things.

The most difficult thing in life is to know yourself.

Hope is the only good that is common to all men; those who have nothing else possess hope still.

All things are full of gods.

Placing your stick at the end of the shadow of the pyramid, you made by the sun's rays two triangles, and so proved that the pyramid [height] was to the stick [height] as the shadow of the pyramid to the shadow of the stick.

Water is the first principle of everything.

Do not ask who started it.

Time is the wisest of all things that are; for it brings everything to light.

Nothing is more ancient than God, for He was never created; nothing more beautiful than the world, it is the work of that same God; nothing is more active than thought, for it flies over the whole universe; nothing is stronger than necessity, for all must submit to it.

Avoid doing what you would blame others for doing.

None but a Craftsman can judge of a craft.

Tell not abroad what thou intendest to do; for if thou speed not, thou shalt be mocked!

Wisdom thoroughly learned, will never be forgotten. Science is got by diligence; but Discretion and Wisdom cometh of GOD.

Patience cometh by the grace of the Soul.

Concern should drive us into action and not into a depression.

Be not hasty to speak; nor slow to hear!

Repentance deserveth Pardon.

If thy fellows hurt thee in small things, suffer it! and be as bold with them!

Without Justice, no realm may prosper.

True and perfect Friendship is, to make one heart and mind of many hearts and bodies.

In this theater of man's life it is reserved only for God and angels to be lookers on.

Wish not the thing, which thou mayest not obtain!

The best and greatest winning is a true friend; and the greatest loss is the loss of time.

Take not thine enemy for thy friend; nor thy friend for thine enemy!

Happy is that City that hath a wise man to govern it.

He is not rich, that enjoyeth not his own goods.

If thou intend to do any good; tarry not till to-morrow! for thou knowest not what may chance thee this night.

It is better to suffer, than to do, wrong.

Rejoice not in another man's misfortune!

To use Virtue is perfect blessedness.