Quote by Karl Popper

"The task is not so much to see what no one has yet seen, but to think what nobody has yet thought about that which everybody sees."

"All life is problem solving."

"Science may be described as the art of systematic over-simplification."

"The more you know, the more you realize you know nothing."

"The best part of living is knowing you survived."

"The world needs heroes."

"Life is too short to live poorly."

"I'd rather be an optimist and be wrong than a pessimist and be right"