"The secret to creativity is knowing how to hide your sources."

"Pure mathematics is, in its way, the poetry of logical ideas."

"Science without religion is lame, religion without science is blind."

"Everything should be made as simple as possible, but not simpler."

"I have no special talents. I am only passionately curious."

"If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut."

"The true sign of intelligence is not knowledge but imagination."

"We cannot solve our problems with the same thinking we used when we created them."

"Logic will get you from A to Z; imagination will get you everywhere."

"The only source of knowledge is experience."

"Peace cannot be kept by force; it can only be achieved by understanding."

"The measure of intelligence is the ability to change."

"Try not to become a man of success, but rather try to become a man of value."

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

"There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle."