“The meaning of life consists in the fact that it makes no sense to say that life has no meaning.”

“An expert is a person who has made all the mistakes that can be made in a very narrow field.”

“An expert is a man who has made all the mistakes which can be made in a very narrow field.”

“How wonderful that we have met with a paradox. Now we have some hope of making progress.”

“There are some things so serious that you have to laugh at them.”

“Never express yourself more clearly than you are able to think”

“There are trivial truths and there are great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true.”