A circumstance which has always appeared wonderful to me, is that such sublime discoveries should have been made by the sole assistance of a quadrant and a little arithmetic

A multitude of laws in a country is like a great number of physicians, a sign of weakness and malady.

A witty saying proves nothing.

All men are equal; it is not birth, but virtue alone, that makes the difference.

Anything too stupid to be said is sung.

Doubt is not a pleasant condition, but certainty is absurd.

God is a comedian playing to an audience too afraid to laugh.

I may disagree with what you have to say, but I shall defend, to the death, your right to say it.

It is dangerous to be right when the government is wrong.

It is forbidden to kill; therefore all murderers are punished unless they kill in large numbers and to the sound of trumpets.