We have always been taught that navigation is the result of civilization, but modern archeology has demonstrated very clearly that this is not so.

Borders I have never seen one. But I have heard they exist in the minds of some people.

One learns more from listening than speaking.And both the wind and the people who continue to live close to nature still have much to tell us which we cannot hear within university walls.

In my experience, it is rarer to find a really happy person in a circle of millionaires than among vagabonds.

It is progress when a centuries-old oak is cut down to give space for a road sign.

I also believe that when one dies, one may wake up to the reality that proves that time does not exist.

For every minute, the future is becoming the past.

In fighting nature, man can win every battle except the last. If he should win that too, he will perish, like an embryo cutting its own umbilical cord.

Progress is man's ability to complicate simplicity.

It is progress when weapons are improved to kill more people at a longer range.

Circumstances cause us to act the way we do. We should always bear this in mind before judging the actions of others. I realized this from the start during World War II.

My books are my brain and my heart made visible.

To profoundly understand a baby, you must first be a mother.

It's all just a bit of fun ...

I mean, there's a hell of a lot of grounds for protest, but you don't do it through music.

The rules you were given were the rules that worked for the person who created them.

Familiarity breeds democracry.

Dissension is healthy, even when it gets loud.

Some books seem to have been written, not to teach us anything, but to let us know that the author has known something.

Life on this earth first emerged from the sea. As the polar ice melts and sea level rises, we humans find ourselves facing the prospect that once again we may quite literally become ocean.