“The spirit desires to remain with its body, because, without the organic instrum…” — Leonardo da Vinci

All knowledge which ends in words will die as quickly as it came to life, with the exception of the written word: which is its mechanical part.

It seems that it had been destined before that I should occupy myself so thoroughly with the vulture, for it comes to my mind as a very early memory, when I was still in the cradle, a vulture came down to me, he opened my mouth with his tail and struck me a few times with his tail against my lips.

Weight, force and casual impulse, together with resistance, are the four external powers in which all the visible actions of mortals have their being and their end.

Men of lofty genius when they are doing the least work are most active.