"The fastest way to become rich is to socialize with the poor; the fastest way to become poor is to socialize with the rich."

"Someone who says 'I am busy' is either declaring incompetence (and lack of control of his life) or trying to get rid of you."

"The most important quality for a scientist is to be willing to say 'I don't know.'"

"The greatest invention of mankind is the ability to ignore things."

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