Know this: though love is weak and hate is strong, Yet hate is short, and love is very long.

Anyone who believes exponential growth can go on forever in a finite world is either a madman or an economist.

A world of unseen dictatorship is conceivable, still using the forms of democratic government.

Economics has been incurably growth-oriented and addicted to everybody growing richer, even at the cost of exhaustion of resources and pollution of the environment.

Equilibrium is a figment of the human imagination.

Theories without facts may be barren, but facts without theories are meaningless.

We should always bear in mind that numbers represent a simplification of reality.

DNA has been aptly described as the first three-dimensional Xerox machine.

The world moves into the future as a result of decisions, not as a result of plans. Plans are significant only insofar as they affect decisions.

If we saw tomorrow's newspaper today, tomorrow would never happen.

There is no such thing as economics, only social science applied to economic problems.

Do not exchange your soul for money.

A dog has the soul of a philosopher.

A son is an unfulfilled man’s last attempt to fulfill his unfulfilled dreams.

That's what I love from metal, and that's what I love from hip-hop. That's what I love from any music that's hard, that's got an edge to it-The attitude in it.

The best thing about Berlin was that I got to be surrounded by people who pursue their ideas for themselves.

All other nations are drinking Ray Charles beer and we are drinking Barry Manilow.

Music can always be a life-changing experience, for musicians and fans, or at least life-affecting, but it depends on to what degree.

To build a more healthy, peaceful and equitable world the classrooms of the world have to be full of girls as well as boys.

The most important question facing the planet is: Is it worth it?

A soft answer breaks the rage, a tough answer encourage the fury.