Imitation is criticism.

Make your own rules or be a slave to another man's.

Then cherish pity, lest you drive an angel from your door.

Truth can never be told so as to be understood and not be believed.

He who pretends to be either painter or engraver without being a master of drawing is an imposter.

Mock on, mock on, Voltaire, Rousseau! Mock on, mock on: 'Tis all in vain! You throw the sand against the wind, And the wind blows it back again. And every sand becomes a gem Reflected in the beams divine; Blown back they blind the mocking eye, But still in Israel's paths they shine. The atoms of Democritus And Newton's particles of light Are sands upon the Red Sea shore, Where Israel's tents do shine so bright.

It is the greatest of crimes to depress true art and science.