O Time with your teethy years! You swallow up all things little by little in a slow-motion, wrinkling process of dying.

All our knowledge is the offspring of our perceptions.

The boundaries of bodies are the least of all things.

Poor is the pupil who does not surpass his master.

Study me, reader, if you delight in me, because on very few occasions shall I return to the world, and because the patience for this profession is found in very few, and only in those who wish to compose things anew. Come, oh men, to see the miracles that such studies will disclose to nature.

Great love is born of great knowledge of the thing that is loved, and if you do not know it, you can love it little or not at all.

The vine that has grown old on an old tree falls with the ruin of that tree, and through that bad companionship must perish with it.