At present I am light, now I fly, now I see myself below me, now a god dances through me.

I am not a human being, I am dynamite.

Man is more ape than many of the apes.

Whoever commits to paper what he suffers becomes a melancholy author: but he becomes a serious author when he tells us what he suffered and why he now reposes in joy.

The wheel and the brake have different duties, but also one in common: to hurt one another.

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!

Democratic institutions form a system of quarantine for tyrannical desires.