Life consists in penetrating the unknown, and fashioning our actions in accord with the new knowledge thus acquired.

The life of a small group of people, who live true to their convictions, does more and more certain good than all writing. Let us, therefore, young and old, direct all our actions as much as possible towards the realization of our convictions.

Everyone thinks of changing the world, but no one thinks of changing himself.

There is a better way to do it; find it. sign Thomas Edison had hanging in his office A fool vents all his feelings, but a wise man holds them back. Proverbs Joy can be real only if people look upon their lives as an opportunity to be of service, and have a definite object in life outside themselves and their personal happiness.

The essence of all slavery consists in taking the product of another's labor by force. It is immaterial whether this force be founded upon ownership of the slave or ownership of the money that he must get to live.

I have discovered nothing new, I have only perceived what I already knew.