The spirit desires to remain with its body, because, without the organic instruments of that body, it can neither act, nor feel anything.

Our body is dependant on Heaven and Heaven on the Spirit.

I have found that, in the composition of the human body as compared with the bodies of animals, the organs of sense are duller and coarser. Thus, it is composed of less ingenious instruments, and of spaces less capacious for receiving the faculties of sense.

Where the spirit does not work with the hand there is no art

Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity.

Thirst will parch your tongue and your body will waste through lack of sleep ere you can describe in words that which painting instantly sets before the eye