The mind is furnished with ideas by experience alone

Understanding like the eye; whilst it makes us see and perceive all things, takes no notice of itself; and it requires art and pains to set it at a distance and make it its own subject.

The great art to learn much is to undertake a little at a time.

Who are we to tell anyone what they can or can't do?

A criminal who, having renounced reason ... hath, by the unjust violence and slaughter he hath committed upon one, declared war against all mankind, and therefore may be destroyed as a lion or tiger, one of those wild savage beasts with whom men can have no society nor security.

Those are not at all to be tolerated who deny the being of God. Promises, covenants, and oaths, which are the bonds of human society, can have no hold upon an atheist. The taking away of God, though but even in thought, dissolves all.

A sound mind in a sound body is a short but full description of a happy state in this world.