All truly wise thoughts have been thought already thousands of times; but to make them truly ours, we must think them over again honestly, until they take root in our personal experience.

Live each day as if your life had just begun.

Correction does much, but encouragement does more.

We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe.

Every day we should hear at least one little song, read one good poem, see one exquisite picture, and, if possible, speak a few sensible words.

The moment one definitely commits oneself, then Providence moves too. Whatever you think you can do, or believe you can do, begin it. Action has magic, power and grace.

Magic is believing in yourself, if you can do that, you can make anything happen.

At the moment of commitment the entire universe conspires to assist you.

Courage is the commitment to begin without any guarantee of success.

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.

There is nothing worse than aggressive stupidity.

It is my belief that love dies from overuse, and the heart dies from a lack of interest in life without it.

Music is a language, you see, a universal language.

Enthusiasm is contagious. Start an epidemic.

There is no crisis in this country that requires us to set up a crisis headquarters. Iran is currently in a good situation.

I definitely invented the everything bagel. There's no doubt. It's undeniable truth. It's one of those things that's 100% true, 50% of the time.

I am never usually taking myself too seriously and I think that people when they read stuff from me, they have to realise that I'm having fun.

A lot of science started off as magic, where people were burned at the stake for doing science basically.

Boredom and stupidity and patriotism, especially when combined, are three of the greatest evils of the world we live in.

Good luck and bad luck are strands of the same rope.

It is the sky that makes the earth so lovely at sunrise, and so splendid at sunset. In the one it breathes over the earth the crystal-like ether, in the other the liquid gold.