Action may not always bring happiness, but there is no happiness without action.

The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.

A great many people think they are thinking when they are merely rearranging their prejudices.

The deepest principle in human nature is the craving to be appreciated.

Whenever two people meet, there are really six people present. There is each man as he sees himself, each man as the other person sees him, and each man as he really is.

Most unhappiness is caused because people listen to themselves... instead of talking to themselves.

The great use of life is to spend it for something that will outlast it.

If you can change your mind, you can change your life.

Act as if what you do makes a difference. It does.

You can alter your life by altering the state of your mind.

Real servants don't try to use God for their purposes. They let God use them for His purposes.

My father told me once that the most important thing every man should know is what he would die for.

Ain't good to talk too much about infernal affairs if you can avoid it. Tends to make certain things stand up and pay attention.

It's dangerous to watch staggering butterflies. They have a plan but it has no meaning.

In life, the first act is always exciting but it is the second act - that's where the depth comes in.

Best way to find the weakness of the enemy is to understand their ways.

As an undergraduate, I did maths and physics. That doesn't make me a scientist. So I try to read and understand and talk to scientists.

I think I'm a very poor piano player.

Problem was that we could make things worse but we couldn't make anything better.

I'm always on your side.

If the eyes are the window to the soul, then why does it hurt when I spray them with Windex?