We are healthy only to the extent that our ideas are humane.

Symbols can be so beautiful, sometimes.

New knowledge is the most valuable commodity on earth. The more truth we have to work with, the richer we become.

The planet was being destroyed by manufacturing processes, and what was being manufactured was lousy, by and large.

Earthlings went on being friendly, when they should have been thinking instead.

I have no culture, no humane harmony in my brains. I can't live without a culture anymore.

Vietnam was a country where America was trying to make people stop being communists by dropping things on them from airplanes.

A writer off-guard since the materials with which he works are so dangerous can expect agony as quick as a thunderclap.

It is hard to adapt to chaos, but it can be done. I am living proof of that: It can be done

When you know that everything matters—that every move counts as much as any other—you will begin living a life of permanent purpose.

There are no things man was not meant to know. There are, perhaps, things man is too dumb to figure out, but that's a different problem.

The most important element of a free society, where individual rights are held in the highest esteem, is the rejection of the initiation of violence.

Things will come to you when the time is right and I say just go for it. If you love what you want to do, just keep on going.

We have now well established the fact in our own nation that one can do more work in six days, even in five, than in seven. A run-down person is an unproductive person.

I believe the man who will go down in posterity is the man who paints his own time and the scenes of everyday life around him.

If I accept you as you are, I will make you worse; however, if I treat you as though you are what you are capable of becoming, I help you become that.

One of the things we have learned in the first year is that if you want to scale-up, the first thing you have to do is to expand your own team.

The most powerful thing you can do to change the world is to change your own beliefs about the nature of life, people, and reality to something more positive... and begin to act accordingly.

I am sympathetic to the fact that Turkey is doing everything it can to prevent the civil war in Syria from spilling over into its own country.