Nothing is to be feared but fear itself. Nothing grievous but to yield to grief.

We read that we ought to forgive our enemies; but we do not read that we ought to forgive our friends.

For many parts of Nature can neither be invented with sufficient subtlety, nor demonstrated with sufficient perspicuity, nor accommodated unto use with sufficient dexterity, without the aid and intervening of the mathematics, of which sort are perspective, music, astronomy, cosmography, architecture, engineery, and divers others.

Read not to contradict and confute, nor to believe and take for granted... but to weigh and consider.

He that cannot possibly mend his own case will do what he can to impair another's.

It is good discretion not make too much of any man at the first; because one cannot hold out that proportion.

That things are changed, and that nothing really perishes, and that the sum of matter remains exactly the same, is sufficiently certain.