Forgetting: that is a divine capacity. And whoever aspires to the heights and wants to fly must cast off much that is heavy and make himself light--I call it a divine capacity for lightness.

Life is an instinct for growth, for survival, for the accumulation of forces, for power.

An important species of pleasure, and therewith the source of morality, arises out of habit.

Against boredom even gods struggle in vain.

There is no pre-established harmony between the furtherance of truth and the well-being of mankind.

Metaphysical world.- It is true, there could be a metaphysical world; the absolute possibility of it is hardly to be disputed. We behold all things through the human head and cannot cut off this head; while the question nonetheless remains what of the world would still be there if one had cut it off.

In true love it is the soul that envelops the body.