More quotes by Karl Popper

"Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve."
"Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve."
"No book can ever be finished. While working on it we learn just enough to find it immature the moment we turn away from it"
"No rational argument will have a rational effect on a man who does not want to adopt a rational attitude."
"While differing widely in the various little bits we know, in our infinite ignorance we are all equal."