Product of optimism and knowledge is a constant.

Everybody has a capacity for a happy life. All these talks about how difficult times we live in, that's just a clever way to justify fear and laziness.

Most important part of doing physics is the knowledge of approximation.

A method is more important than a discovery, since the right method will lead to new and even more important discoveries.

Cosmologists are often in error, but never in doubt

Money is in the exponent. And exponent needs to be calculated precisely.

We mathematicans are all a bit crazy.

Why add prime numbers? Prime numbers are made to be multiplied, not added.

It is not courage that makes us speak the truth, but it is a hunger for truth that makes us courageous

Don't let the Dogma of men to interfere with your Destiny

I just cash in on the fact that I’m good looking, and I’ve got a nice figure and girls like me.

I work for ABC television I have my own syndicated TV series. I've been on the cover of 'Time Magazine' and on the cover of 'Sports Illustrated' five times.

There is something fearfully strengthening about cutting free even if the ties bandage the heart itself.

We're not the only people that have had to suffer, there have always been people that've had to.

We can love someone without understanding that person.

I should have said Welsh has always attracted me. By its style and sound more than any other, ever though I first only saw it on coal trucks, I always wanted to know what it was about.

Listen to the silence. Listen to your life. Be present, not just think about what's going on next week, next month.

But today when I am 17 and warm and well fed, I'm keeping this journal for myself so I can always remember life as we knew it, life as we know it, for a time when I am no longer in the sunroom.