Genius is an intellect that has become unfaithful to its destiny.

The conviction that the world and man is something that had better not have been, is of a kind to fill us with indulgence towards one another.

How very paltry and limited the normal human intellect is, and how little lucidity there is in the human consciousness, may be judged from the fact that, despite the ephemeral brevity of human life, the uncertainty of our existence and the countless enigmas which press upon us from all sides, everyone does not continually and ceaselessly philosophize, but that only the rarest of exceptions do.

He who does not enjoy solitude will not love freedom.

Every original idea is first ridiculed, then vigorously attacked, and finally taken for granted.

For whence did Dante take the materials for his hell but from this our actual world? And yet he made a very proper hell of it.

Because Christian morality leaves animals out of account, they are at once outlawed in philosophical morals; they are mere 'things,' mere means to any ends whatsoever. They can therefore be used for vivisection, hunting, coursing, bullfights, and horse racing, and can be whipped to death as they struggle along with heavy carts of stone. Shame on such a morality that is worthy of pariahs, and that fails to recognize the eternal essence that exists in every living thing, and shines forth with inscrutable significance from all eyes that see the sun!