Wise men speak because they have something to say; fools because they have to say something.
A lie is more comfortable than doubt, more useful than love, more lasting than truth.
The man who asks a question is a fool for a minute, the man who does not ask is a fool for life.
Beauty lies in the eyes of the beholder.
I'm trying to think, don't confuse me with facts.
We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.
The important thing is not to stop questioning. Curiosity has its own reason for existing.
Life is really simple, but we insist on making it complicated.
It is not true that people stop pursuing dreams because they grow old, they grow old because they stop pursuing dreams.
I cannot teach anybody anything. I can only make them think.
You talk when you cease to be at peace with your thoughts.
The universe does not behave according to our pre-conceived ideas. It continues to surprise us.
Perfection simply doesn't exist. Without imperfection, neither you nor I would exist
There is nothing more unequal than the equal treatment of unequal people.
The universe is wider than our views of it.
When we are tired, we are attacked by ideas we conquered long ago.
Every deep thinker is more afraid of being understood than of being misunderstood.
It is hard enough to remember my opinions, without also remembering my reasons for them.
There's a terror in knowing what the world is about.
You have your way. I have my way. As for the right way, the correct way, and the only way, it does not exist.