Many errors, of a truth, consist merely in the application of the wrong names of things. For if a man says that the lines which are drawn from the centre of the circle to the circumference are not equal, he understands by the circle, at all events for the time, something else than mathematicians understand by it.

The virtue of a free man appears equally great in refusing to face difficulties as in overcoming them.

The most tyrannical of governments are those which make crimes of opinions, for everyone has an inalienable right to his thoughts.

Many errors, of a truth, consist merely in the application of the wrong names of things. For if a man says that the lines which are drawn from the centre of the circle to the circumference are not equal, he understands by the circle, at all events for the time, something else than mathematicians understand by it.

The more we understand individual things, the more we understand God.

Big fish eat small fish with as much right as they have power.

He who hates anyone will endeavor to do him an injury, unless he fears that a greater injury will thereby accrue to himself; on the other hand, he who loves anyone will, by the same law, seek to benefit him.