"I'm a pessimist, but I'm an optimistic pessimist. I believe things will go wrong, but I'm happy about it."

"The problem is not that people don't think; the problem is that they think too much, but in the wrong way."

"The most dangerous thing is not ignorance, but the illusion of knowledge."

"The greatest revolution is not to change the world, but to change yourself."

"The true meaning of life is to find a meaning that is not there."