When I had made more money than I needed for myself and my family, I set up a foundation to promote the values and principles of a free and open society.

Once we realize that imperfect understanding is the human condition there is no shame in being wrong, only in failing to correct our mistakes.

I'm not better than the next trader, just quicker at admitting my mistakes and moving on to the next opportunity.

There is no point in being confident and having a small position.

It's not whether you're right or wrong that's important, but how much money you make when you're right and how much you lose when you're wrong

To others, being wrong is a source of shame; to me, recognizing my mistakes is a source of pride.

The main obstacle to a stable and just world order is the United States.

Now that I have called you on your false accusation, you are using additional smear tactics.

Esperanto was a very useful language, because wherever you went, you found someone to speak with.

Stock market bubbles don't grow out of thin air. They have a solid basis in reality, but reality as distorted by a misconception.

The sovereignty of states must be subordinated to international law and international institutions.

A claim that event horizons exist is like someone's claim to be immortal: You would have to wait until the end of time to confirm the claim.

My father has made a museum with my cuttings and photographs.

Excellence isn't achieved without inspiration and perspiration. You've got to have both.

No mortal is alert enough to be present at the first dawn of spring.

It is better to be tired from physical exertion than to be fatigued by the 'poisons' generated by nervousness while lying awake.

I never, ever used my son for publicity. He'll have his say one day if he wants it. He'll have the last word. He has time to defend himself.

Following celebrities or people you don't regularly see in person often doesn't add to our happiness. The best use of social media is to deepen existing close relationships or create new ones.

We poor creatures are born for man's pleasure and amusement, and destined to go through endless sufferings and trials.

In April 1981, at my request, my mother went to a detective agency. She hired them to follow me, to report my daily activities, and to provide photographic evidence of my existence.

Therefore a victorious army first wins and then seeks battle; a defeated army first battles and then seeks victory.