At all times throughout the world tribes have supplanted other tribes; and as morality is one important element in their success, the standard of morality and the number of well-endowed men will thus rise and increase.

To do good in return for evil, to love your enemy, is a height of morality to which it may be doubted whether the social instincts would, by themselves, have ever led us.

Piety and morality are but the same spirit differently manifested. Piety is religion with its face toward God; morality is religion with its face toward the world.

I never did, or countenanced, in public life, a single act inconsistent with the strictest good faith; having never believed there was one code of morality for a public, and another for a private man.

The morality of an action depends upon the motive from which we act.

Nominally a great age of scientific inquiry, ours has actually become an age of superstition about the infallibility of science; of almost mystical faith in its nonmystical methods; above all... of external verities; of traffic-cop morality and rabbit-test truth.

There is nothing so bad but it can masquerade as moral... The whole speculation about morality is an effort to find a way of living which men who live it will instinctively feel is good.

The two essential factors of progress: morality and knowledge.

Science does not make us happy; the highest morality alone is capable of conferring true happiness upon us.

Science by itself has no moral dimension. But it does seek to establish truth. And upon this truth morality can be built.

All naturalism in morality, that is all healthy morality, is dominated by an instinct of life - some commandment of life is fulfilled through a certain canon of ‘shall’ and ‘shall not’, some hindrance and hostile element on life’s road is thereby removed. Anti-natural morality, that is virtually every morality that has hitherto been taught, reverenced and preached, turns on the contrary precisely against the instincts of life - it is a now secret, now loud and impudent condemnation of these instincts. By saying ‘God sees into the heart’ it denies the deepest and the highest desires of life and takes God for the enemy of life.

By morality the individual is taught to become a function of the herd, and to ascribe to himself value only as a function... Morality is the herd instinct in the individual.

It is not by running hither and thither outside of itself that the soul understands morality and right conduct: it learns them of its own nature, in its contact with itself, in its intellectual grasp of itself, seeing deeply impressed upon it the images of its primal state.

Morality seeks to restrain the feelings; art seeks to define them by externalizing the, by giving them significant form. Morality has only one aim-the ideal good; art has quite another aim-the objective never changes.

I saw that all beings are fated to happiness: action is not life, but a way of wasting some force, an enervation. Morality is the weakness of the brain.”

To renounce liberty is to renounce being a man, to surrender the rights of humanity and even its duties. For him who renounces everything no indemnity is possible. Such a renunciation is incompatible with man’s nature; to remove all liberty from his will is to remove all morality from his acts.

We have, in fact, two kinds of morality side by side: one which we preach but do not practice, and another which we practice but seldom preach.

Without doubt the greatest injury of all was done by basing morals on myth. For, sooner or later, myth is recognized for what it is, and disappears. Then morality loses the foundation on which it has been built.

Of all parts of wisdom, the practice is the best. Socrates was esteemed the wisest man of his time because he turned his acquired knowledge into morality and aimed at goodness more than greatness.

Morality is religion in practice; religion is morality in principle.