"My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind."
"As our circle of knowledge expands, so does the circumference of darkness surrounding it."
"Try not to become a man of success, but rather try to become a man of value."
"Intellectual growth should commence at birth and cease only at death."
"Gravitation is not responsible for people falling in love."
"If we knew what it was we were doing, it would not be called research, would it?"