Our freedom to discipline ourselves is a freedom we can lose if we don't use it.

Science is the best idea humans have ever had. The more people who embrace that idea, the better.

To leave the world better than you found it, sometimes you have to pick up other people's trash.

Everyone you will ever meet knows something you don't.

Worry compounds the futility of being trapped on a dead-end street. Thinking opens new avenues.

Wisdom is what's left after we've run out of personal opinions

Failure can be bought on easy terms; success must be paid for in advance

Only the poor can know all the disadvantages of poverty. Only the rich can know all the disadvantages of wealth.

The mistakes made by Congress wouldn't be so bad if the next Congress didn't keep trying to correct them.

Our ego is our silent partner...too often with a controlling interest.

Saying what we think gives us a wider conversational range than saying what we know.

Of all creatures on earth, we humans have the highest level of stupidity.

The true measure of your worth includes all the benefits others have gained from your success.

If we fixed a hangnail the way our government fixes the economy, we'd slam a car door on it.

We may not imagine how our lives could be more frustrating and complex - but Congress can. Cullen Hightower

There are people who can talk sensibly about a controversial issue; they're called humorists.

We experience moments absolutely free from worry. These brief respites are called panic.

Older generations are living proof that younger generations can survive their lunacy.

The human body was designed to walk, run or stop; it wasn't built for coasting.