The future can be anything we want it to be, providing we have the faith and that we realize that peace, no less than war, required blood and sweat and tears.

You can't have a better tomorrow if you are thinking about yesterday all the time.

High achievement always takes place in the framework of high expectation.

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

Keep on going and the chances are you will stumble on something, perhaps when you are least expecting it. I have never heard of anyone stumbling on something sitting down.

A problem well stated is a problem half-solved.

You will never stub your toe standing still. The faster you go, the more chance there is of stubbing your toe, but the more chance you have of getting somewhere.

The only time you mustn't fail is the last time you try.

here is a great difference between knowing a thing and understanding it. You can know a lot and not really understand anything.

The world hates change, yet it is the only thing that has brought progress.

If you're doing something the same way you have been doing it for ten years, the chances are you are doing it wrong.

(it was) beautiful, like so many senseless things.

Belief and faith are great, but very few people have been led astray by thinking for themselves.

Violence is formed by the scarcity of nature, and will stay with us as long as we live in scarcity.

I didn't really choose to write; I more or less fell into it.

There is no higher calling or greater privilege known to man than being involved in helping fulfill the Great Commission.

The Soviet Union tried for 70 years to plant Marxism with bayonets in Eastern Europe. Today there are more Marxists on the Harvard faculty than there are in Eastern Europe.

There are many paths but only one journey.

Risks are a measure of people. People who won't take them are trying to preserve what they have. People who do take them often end up having more.

It sometimes seems as though we were trying to combine the ideal of no schools at all with the democratic ideal of schools for everybody by having schools without education.

The number of ways you can live in one lifetime is limitless. So why limit yourselves? The sky is NOT the limit. Beyond the universe is.