The existence of the Bible is the greatest blessing which humanity ever experienced.

The only thing permanent is change.

What are the aims which are at the same time duties? They are perfecting of ourselves, the happiness of others.

Reason must approach nature in order to be taught by it. It must not, however, do so in the character of a pupil who listens to everything that the teacher chooses to say, but of an appointed judge who compels the witness to answer questions which he has himself formulated.

Standing armies shall in time be totally abolished.

Look closely. The beautiful may be small.

The enjoyment of power inevitably corrupts the judgment of reason, and perverts its liberty.