• "Imagination is more important than knowledge..."

• "Reality is merely an illusion, although a very persistent one."

• "The important thing is not to stop questioning."

• "The important thing is not to stop questioning. Curiosity has its own reason for existing. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery every day. Never lose a holy curiosity."

• "Insanity: doing the same thing over and over again and expecting different results."

• "I cannot believe that God would choose to play dice with the universe."

• "Great spirits have always encountered opposition from mediocre minds. The mediocre mind is incapable of understanding the man who refuses to bow blindly to conventional prejudices and chooses instead to express his opinions courageously and honestly."

• "The significant problems we face cannot be solved at the same level of thinking we were at when we created them."

• "You have to learn the rules of the game. And then you have to play better than anyone else."

• "The only thing that interferes with my learning is my education."

• "Logic will get you from A to B. Imagination will take you everywhere."

• "Wisdom is not a product of schooling but of the lifelong attempt to acquire it."

• "Life is like riding a bicycle. To keep your balance you must keep moving."

• "Education is what remains after one has forgotten everything he learned in school."

• "If you want to live a happy life, tie it to a goal, not to people or things."

http://www.wikisuccess.org/wiki/Albert_Einstein 

I like this one

"You have to learn the rules of the game. And then you have to play better than anyone else."

v