We have no organ at all for knowledge, for truth: we know (or believe or imagine) precisely as much as may be useful in the interest of the human herd, the species: and even what is here called usefulness is in the end only a belief, something imagined and perhaps precisely that most fatal piece of stupidity by which we shall one day perish.

In constructing concepts, we overlook the fact that no two things are the same. There is no such thing as the concept of a leaf, only billions and billions of leaves.

One has to take a somewhat bold and dangerous line with this existence: especially as, whatever happens, we are bound to lose it.

Having a talent is not enough: one must also have your permission to have it--right, my friends?

We do not belong to those who only get their thought from books, or at the prompting of books, -- it is our custom to think in the open air, walking, leaping, climbing, or dancing on lonesome mountains by preference, or close to the sea, where even the paths become thoughtful.

Everything in woman hath a solution. It is called pregnancy.

Antithesis is the narrow gateway through which error most prefers to worm its way towards truth.