An inventor is simply a fellow who doesn't take his education too seriously.

In a real dark night of the soul it is always three o'clock in the morning, day after day.

I believe that in this generation those with the courage to enter the conflict will find themselves with companions in every corner of the world.

Fight for your opinions, but do not believe that they contain the whole truth, or the only truth.

Riches may enable us to confer favours, but to confer them with propriety and grace requires a something that riches cannot give.

In the state of nature, indeed, all men are born equal, but they cannot continue in this equality. Society makes them lose it, and they recover it only by the protection of the laws.