To one extent, if you've seen one city slum, you've seen them all.

The future is the shape of things to come.

The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane.

In their innocence, very young children know themselves to be light and love. If we will allow them, they can teach us to see ourselves the same way.

Live to the point of tears.

We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths.

In three words I can sum up everything I've learned about life: it goes on.

He who is in love with himself has at least this advantage - he won't encounter many rivals.

The first forty years of life give us the text; the next thirty supply the commentary on it.

Some days you're the bug, some days you're the windshield.

Mastery of the emotions is fundamental to a virtuous life.

To cherish what remains of the Earth and to foster its renewal is our only legitimate hope of survival.

Fortune cannot aid those who do nothing.

We must be willing to fail and to appreciate the truth that often 'Life is not a problem to be solved, but a mystery to be lived.'

If you have zest and enthusiasm, you attract zest and enthusiasm. Life does give back in kind.

How can I go forward when I don't know which way I'm facing?

You are not stuck where you are unless you decide to be.

The present is theirs; the future, for which I really worked, is mine.

Life is not an exact science, it is an art.

I’m not afraid of death, but I’m in no hurry to die. I have so much I want to do first.

In every tragedy, an element of comedy is preserved. Comedy is just tragedy reversed.