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.

Fire destroys falsehood, that is sophistry, and restores truth, driving out darkness.

Study without desire spoils the memory, and it retains nothing that it takes in.

What is fair in men, passes away, but not so in art

Man's external form, marvellously constructed, is not much as compared with the divine soul that dwells inside that structure.

Do not reveal, if liberty is precious to you; my face is the prison of love.

All objects transmit their image to the eye in pyramids and the nearer to the eye these pyramids are intersected the smaller will the image appear of the objects which cause them.