Painting is concerned with the ten things you can see: these are darkness and brightness, substance and color, form and place, remoteness and nearness, movement and rest.

I love this site. It was lovingly hand-shaped it. Your soul transformed this into this art. It was perfect. I have tried to create another equal to it... but to no avail, so I will just have to paint the Sistine Chapel.

Though I may not . . . be able to quote other authors, I shall rely on that which is much greater and more worthy - on experience.

Small rooms or dwellings set the mind in the right path, large ones cause it to go astray.

Inequality is the cause of all local movements.

Of the four elements water is the second in weight and the second in respect of mobility. It is never at rest until it unites with the sea.

A wave is never found alone, but is mingled with as many other waves as there are uneven places in the object where the said wave is produced.