Again men have been kept back as by a kind of enchantment from progress in science by reverence for antiquity, by the authority of men counted great in philosophy, and then by general consent.

Certainly man is of kin to the beasts by his body; and if he be not kin to God by his spirit, he is a base and ignoble creature.

All painting is an accident. But it's also not an accident, because one must select what part of the accident one chooses to preserve.

They who derive their worth from their ancestors resemble potatoes, the most valuable part of which is underground.

Consistency is the foundation of virtue.

They are the best physicians, who being great in learning most incline to the traditions of experience, or being distinguished in practice do not reflect the methods and generalities of art.

Of all virtues and dignities of the mind, goodness is the greatest