Speech of yourself ought to be seldom and well chosen.

A much talking judge is an ill-tuned cymbal.

The less people speak of their greatness, the more we think of it.

I do not believe that any man fears to be dead, but only the stroke of death.

The cause and root of nearly all evils in the sciences is this-that while we falsely admire and extol the powers of the human mind we neglect to seek for its true helps.

The first question concerning the Celestial Bodies is whether there be a system, that is whether the world or universe compose together one globe, with a center, or whether the particular globes of earth and stars be scattered dispersedly, each on its own roots, without any system or common center.

For friends... do but look upon good Books: they are true friends, that will neither flatter nor dissemble.