The doorstep to the temple of wisdom is a knowledge of our own ignorance.

The electrical matter consists of particles extremely subtile, since it can permeate common matter, even the densest metals, with such ease and freedom as not to receive any perceptible resistance.

There is none deceived but he that trusts.

When you taste honey, remember gall.

I should have no objection to go over the same life from its beginning to the end: requesting only the advantage authors have, of correcting in a second edition the faults of the first.

Idleness and pride tax with a heavier hand than kings and parliaments. If we can get rid of the former, we may easily bear the latter.

I believe ... that the soul of man is immortal and will be treated with justice in another life, respecting its conduct in this.