Let us try to teach generosity and altruism, because we are born selfish.

Get off your butt and join the Marines!

If you pick up a starving dog and make him prosperous he will not bite you. This is the principal difference between a dog and man.

Beauty of whatever kind, in its supreme development, invariably excites the sensitive soul to tears.

Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.

That which can be asserted without evidence, can be dismissed without evidence.

If we all worked on the assumption that what is accepted as true is really true, there would be little hope of advance.

All the perplexities, confusion and distress in America arise, not from defects in their Constitution or Confederation, not from want of honor or virtue, so much as from the downright ignorance of the nature of coin, credit and circulation.

It ain't over 'til it's over.

How vain it is to sit down to write when you have not stood up to live.

The imagination is not a state: it is the human existence itself.

You’ll miss the best things if you keep your eyes shut.

Since it is difficult to join them together, it is safer to be feared than to be loved when one of the two must be lacking.

Laziness never arrived at the attainment of a good wish.

In feature films the director is God; in documentary films God is the director

To turn really interesting ideas and fledgling technologies into a company that can continue to innovate for years, it requires a lot of disciplines.

Anxiety is the dizziness of freedom.

Advice to intellectuals: let no-one represent you.

Worry is the interest paid by those who borrow trouble.

You cant have a plan for your day, til you have a plan for your life.

There's no such thing as perfect writing, just like there's no such thing as perfect despair.