Deep, persistent problems are never solved by accident; they are solved only by people who are obsessed with them and set out to solve them directly.

Having begun my life in science searching for the equation beyond time, I now believe that the deepest secret of the universe is that its essence rests in how it unfolds moment by moment in time.

One possibility is: God is nothing but the power of the universe to organize itself.

Surprise is inherent in the structure of the world.

There is nothing outside the universe.

On the way, I shared the backseat of Feyerabend's little sports car with the inflatable raft he kept there in case an 8-point earthquake came while he was on the Bay Bridge.

Some string theorists prefer to believe that string theory is too arcane to be understood by human beings, rather than consider the possibility that it might just be wrong.

Science is not about what's true or what might be true, science is about what people with originally diverse viewpoints can be forced to believe by the weight of public evidence.

Simplicity and beauty are the signs not of truth but of a well-constructed approximate model of a limited domain of phenomena.

Any two particles in the universe attract each other through the gravitational interaction.

We know no more than we did in 1975 - and that's not good

Sometimes poets expect me to think far deeper than I'm willing to dig.

Beauty was worthIts every sorrow, mind's fading or World's ending, As darkness covered the garden that is the earth.

You have to go through those mountains and valleys - because that's what life is: soul growth.

I have witnessed the softening of the hardest of hearts by a simple smile.

Even when we have physical hardships, we can be very happy.

America needs to follow the policies it has introduced in Germany. We have to go through a certain de-Nazification process.

I believe that every person is born with talent.

Popularity is not the single determining factor, as we all know, in how people vote.

I think if I was not in love, I would probably let myself go faster. Love gives me the vanity to continue.

It is dishonorable to say one thing and think another; how much more dishonorable to write one thing and think another.