When men hire themselves out to shoot other men to order, asking nothing about the justice of their cause, I don't care if they are shot themselves.

Every man is free to do that which he wills, provided he infringes not the equal freedom of any other man.

As there must be moderation in other things, so there must be moderation in self-criticism. Perpetual contemplation of our own actions produces a morbid consciousness, quite unlike that normal consciousness accompanying right actions spontaneously done; and from a state of unstable equilibrium long maintained by effort, there is apt to be a fall towards stable equilibrium, in which the primitive nature reasserts itself. Retrogression rather than progression may hence result.

Ethical ideas and sentiments have to be considered as parts of the phenomena of life at large. We have to deal with man as a product of evolution, with society as a product of evolution, and with moral phenomena as products of evolution.

How often misused words generate misleading thoughts!

Originally, ethics has no existence apart from religion, which holds it in solution.

He who carries self-regard far enough to keep himself in good health and high spirits, in the first place thereby becomes an immediate source of happiness to those around, and in the second place maintains the ability to increase their happiness by altruistic actions. But one whose bodily vigour and mental health are undermined by self-sacrifice carried too far, in the first place becomes to those around a cause of depression, and in the second place renders himself incapable, or less capable, of actively furthering their welfare. In estimating conduct we must remember that there are those who by their joyousness beget joy in others, and that there are those who by their melancholy cast a gloom on every circle they enter.

The pursuit of individual happiness within those limits prescribed by social conditions, is the first requisite to the attainment of the greatest general happiness.

If insistence on them tends to unsettle established systems ... self-evident truths are by most people silently passed over; or else there is a tacit refusal to draw from them the most obvious inferences.

People ... become so preoccupied with the means by which an end is achieved, as eventually to mistake it for the end. Just as money, which is a means of satisfying wants, comes to be regarded by a miser as the sole thing to be worked for, leaving the wants unsatisfied; so the conduct men have found preferable because most conducive to happiness, has come to be thought of as intrinsically preferable: not only to be made a proximate end (which it should be), but to be made an ultimate end, to the exclusion of the true ultimate end.