The future is the shape of things to come.

The natural world is the greatest source of excitement. The greatest source of visual beauty. It is the greatest source of so much in life that makes life worth living.

As far as we can discern, the sole purpose of human existence is to kindle a light of meaning in the darkness of mere being.

If I'm honest I have to tell you I still read fairy-tales and I like them best of all.

There is one common struggle against those who have appropriated the earth, the money, and the machines.

When we do the best that we can, we never know what miracle is wrought in our life, or in the life of another.

Only he who accepts clashes and conflicts in life, loves life.

You can have it all. Just not all at once.

Life will not break your heart. It'll crush it.

Don't be too timid and squeamish about your actions. All life is an experiment. The more experiments you make the better.

Open your arms to change, but don't let go of your values.

Close by the Rights of Man, at the least set beside them, are the Rights of the Spirit.

I am an American; free born and free bred, where I acknowledge no man as my superior, except for his own worth, or as my inferior, except for his own demerit.

Three things have been difficult to tame: the oceans, fools, and women. We may soon be able to tame the oceans; fools and women will take a little longer.

The future starts today, not tomorrow.

And the day came when the risk to remain tight in a bud was more painful than the risk it took to blossom.

Those who are easily shocked should be shocked more often.

When someone leaves, it's because someone else is about to arrive.

The earth is like a spaceship that didn't come with an operating manual.

Humility is really important because it keeps you fresh and new.

I really had a lot of dreams when I was a kid, and I think a great deal of that grew out of the fact that I had a chance to read a lot.