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.

We pay dearly for immortality: we die for it more than once during our lifetimes.

The charm of the Platonic mode of thought ... consisted precisely in the resistance to the obvious evidence of the senses.

Faith, indeed, has up to the present not been able to move real mountains, although I do not know who assumed that it could. But it can put mountains where there are none.

Loving and perishing: it's been a rhyme all these eternities. The will to love: that is, also being willing to die.

What a dissimilarity we see in walking, swimming, and flying. And yet it is one and the same motion: it is just that the load- bearing capacity of the earth differs from that of the water, and that that of the water differs from that of the air! Thus we should also learn to fly as thinkers--and not imagine that we are thereby becoming idle dreamers!

Be careful, lest in casting out your demon you exorcise the best thing in you.