Weight is caused by one element being situated in another; and it moves by the shortest line towards its centre, not by its own choice, not because the centre draws it to itself, but because the other intervening element cannot withstand it.

I shall do down in history as the man who opened a door!

We, by our arts may be called the grandsons of God.

A good painter has two main objects to paint, man and the intention of his soul. The former is easy, the latter hard as he has to represent it by the attitude and movement of the limbs.

An arch consists of two weaknesses which, leaning one against the other, make a strength.

Every action needs to be prompted by a motive.

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