Andrew Springman

“There is an almost universal tendency, perhaps an inborn tendency, to suspect the good faith of a man who holds opinions that differ from our own opinions. … It obviously endangers the freedom and the objectivity of our discussion if we attack a person instead of attacking an opinion or, more precisely, a theory.”
― Karl R. Popper

“While differing widely in the various little bits we know, in our infinite ignorance we are all equal.”
― Karl R. Popper

“It is complete nihilism to propose laying down arms in a world where atom bombs are around. It is very simple: there is no way of achieving peace other than with weapons.”
― Karl R. Popper, The Lesson of this Century: With Two Talks on Freedom and the Democratic State

“Our aim as scientists is objective truth; more truth, more interesting truth, more intelligible truth. We cannot reasonably aim at certainty. Once we realize that human knowledge is fallible, we realize also that we can never be completely certain that we have not made a mistake.”
― Karl R. Popper