The scientist is not a person who gives the right answers, he's one who asks the right questions.

Scientific knowledge advances haltingly and is stimulated by contention and doubt.

Not all poisonous juices are burning or bitter nor is everything which is burning and bitter poisonous.

The scientific mind does not so much provide the right answers as ask the right questions.

And then, as if written by the hand of a bad novelist, an incredible thing happened.

It takes bravery to recognize where in your life you are your own poison... it takes courage to do something about it.

But my father, a thief in many ways, had robbed me of my concentration.

We can't change every little thing that happens to us in life, but we can change the way that we experience it.

I've always disliked words like inspiration. Writing is probably like a scientist thinking about some scientific problem, or an engineer about an engineering problem.

So then you’re free?’ ‘Yes, I’m free,’ said Karl, and nothing seemed more worthless than his freedom.

Proper prospecting prevents poverty.

Air Force interceptors still pursue Unidentified Flying Objects as a matter of national security to this country and to determine technical aspects involved.

The world is only as fair as you can make it. Takes a lot of fight. A lot of fight. But if you stay in here, in your little cave, that's one less fighter on the side of fair.

Wizards are a secretive lot.