More quotes by Albert Einstein

"If one tries to navigate unknown waters one runs the risk of shipwreck"
"I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones."
"Imagination is the highest form of research."
"The tragedy of life is what dies inside a man while he lives."
"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."