Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.

There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.

Questions of personal priority, however interesting they may be to the persons concerned, sink into insignificance in the prospect of any gain of deeper insight into the secrets of nature.

The steam engine has done much more for science than science has done for the steam engine.

Contentment is knowing you're right. Happiness is knowing someone else is wrong.

I started to sink like the moon tends to do if you stare at it too long Then you blink and it's gone.

It was hard to sing like how I wanted to because playing live I had to just be at the top of my lungs all the time, and it made me sound like I had a really bad cold or something.

Hatred is never appeased by hatred in this world. By non-hatred alone is hatred appeased. This is a law eternal.

Ladies there is no neutral position for us to assume.

I think that young people understand me perfectly. I think that's the luckiest thing about my career, that I get older and they get younger, and it didn't stop with my generation.

Playing chess has many aspects that can be useful in everyday situations like planning, concentration and combinations. You learn to win but also to lose and to be creative.

I refuse to buy from anybody anything however nice or beautiful if it interferes with my growth or injures those whom Nature has made my first care.

What the commission that myself and Leon Panetta is trying to do is analyze this in two respects. First of all, what's the right military response and security response?