To him who looks at the world rationally the world looks rationally back.

We learn from history that we do not learn from history

To be independent of public opinion is the first formal condition of achieving anything great.

Truth is found neither in the thesis nor the antithesis, but in an emergent synthesis which reconciles the two.

Nothing great in the world has ever been accomplished without passion.

Genuine tragedies in the world are not conflicts between right and wrong. They are conflicts between two rights.

What history teaches us is that neither nations nor governments ever learn anything from it.

I have the courage to be mistaken.

All education is the art of making men ethical (sittlich), of transforming the old Adam into the new Adam.

To be aware of limitations is already to be beyond them.

Africa has no history and did not contribute to anything that mankind enjoyed.

Positive thinking, ' he would say, 'is also very important.

Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.

Nothing is easier than yesterday's solutions.

The ordeal is not that truth does not win

Does my hair look alright? Of course, it looks alright. Why am I asking you for? ...We get lunch right? ...Can we get this thing going? I gotta meet my girlfriend for a martini.

At various times over 20 years, I did preliminary designs for aircraft like the Stratolaunch. For that whole time I was encouraging us to do something that almost everyone else felt you could not do.

Accessories are important and becoming more and more important every day.

The psychiatrist must become a fellow traveler with his patient.

There is nothing that dies so hard and rallies so often as intolerance.

Music is much more of a multimedia sort of thing than I expected.