I think, therefore I am.

Stubborn and ardent clinging to one's opinion is the best proof of stupidity.

He who can destroy a thing, can control a thing.

Convictions are more dangerous enemies of truth than lies.

Rational discussion is useful only when there is a significant base of shared assumptions.

Creativity is the process of having original ideas that have value.

The greatest of all mistakes is to do nothing because you think you can only do a little

Half the world is composed of people who have something to say and can't, and the other half who have nothing to say and keep on saying it.

Although our intellect always longs for clarity and certainty, our nature often finds uncertainty fascinating.

To be wronged is nothing unless you continue to remember it.

I believe that one defines oneself by reinvention. To not be like your parents. To not be like your friends. To be yourself. To cut yourself out of stone.

I don't like definitions, but if there is a definition of freedom, it would be when you have control over your reality to transform it, to change it, rather than having it imposed upon you. You can't really ask for more than that.

Real knowledge is to know the extent of one's ignorance.

Never pick a fight with an ugly person, they've got nothing to lose.

The one you buy will be the only one that doesn't work.

What a man does for others, not what they do for him, gives him immortality.

Our society is run by insane people for insane objectives.

Today you are you! That is truer than true! There is no one alive who is you-er than you!

None but ourselves can free our minds.

Nothing is as easy as it looks.

There are no limitations to the mind except those we acknowledge.