How can you thank a man for giving you what's already yours? How then can you thank him for giving you only part of what is yours?

A man is great by deeds, not by birth.

The first time someone shows you who they are, believe them.

Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.

It's funny how humans can wrap their mind around things and fit them into their version of reality.

I just invent, then wait until man comes around to needing what I've invented.

Every man takes the limits of his own field of vision for the limits of the world.

Cultivation of mind should be the ultimate aim of human existence.

Johnny Cash has always been larger than life.

A man sooner or later discovers that he is the master-gardener of his soul, the director of his life.

Progress of mankind is progress of mind and intellect.

Anyone who says he can see through women is missing a lot.

We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.

People are more difficult to work with than machines. And when you break a person, he can't be fixed.

I've learned that you can tell a lot about a person by the way (s)he handles these three things: a rainy day, lost luggage, and tangled Christmas tree lights.

The world would be happier if men had the same capacity to be silent that they have to speak.

The true measure of a man is how he treats someone who can do him absolutely no good.

Man has the power to act as his own destroyer - and that is the way he has acted through most of his history.

You climb to reach the summit, but once there, discover that all roads lead down.

If you talk to a man in a language he understands, that goes to his head. If you talk to him in his language, that goes to his heart.

Example is not the main thing in influencing others. It is the only thing.