Let no one ignorant of Mathematics enter here.

Human behavior flows from three main sources: desire emotion and knowledge.

Science is nothing but perception.

Reality is created by the mind. We can change our reality by changing our mind.

If you do not take an interest in the affairs of your government, then you are doomed to live under the rule of fools.

A wise man speaks because he has something to say; a fool because he has to say something.

No one is more hated than he who speaks the truth.

Don't force your children into your ways, for they were created for a time different from your own.

Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws.

Reality is created by the mind, we can change our reality by changing our mind.

Enjoy life. There's plenty of time to be dead. Be kind, for everyone you meet is fighting a harder battle.

Excruciating agony makes me cranky.

There is no such a thing as missing the train of your life! Life is very rich and very generous

I watched as an extremely nerdy exhibitor - I'm talking about a guy who makes Bill Gates look like Brad Pitt.

[Barack Obama] is aware of the criticism back home [from Cuba] that this embargo still exists.

I didn't fear old age. I was just becoming increasingly aware of the fact that the only people who said old age was beautiful were usually twenty-three years old.

An accomplished mathematician, i.e. a most wretched orator.

I have a hankering to go back to the Orient and discard my necktie. Neckties strangle clear thinking.

I have felt an urgency to counsel each of us to seek the higher ground---the refuge and eternal protection of the temple.

You always want to try to make something new, and, of course, America is the world leader in economics today.

I can't imagine playing a boring gig. Like, a boring audience without reaction, I will play against them.