"We must plan for freedom, and not only for security, if for no other reason than that only freedom can make security secure."
"Freedom prospers when religion is vibrant and the rule of law under God is acknowledged."Karl Popper on Ronald Reagan
"For to be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others."Karl Popper on Nelson Mandela
"If you want total security, go to prison. There you're fed, clothed, given medical care and so on. The only thing lacking... is freedom."Karl Popper on Dwight D. Eisenhower
"I am free because I know that I alone am morally responsible for everything I do. I am free, no matter what rules surround me. If I find them tolerable, I tolerate them if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do."Karl Popper on Robert A. Heinlein
"Freedom is not worth having if it does not connote freedom to err."Karl Popper on Mahatma Gandhi
"No rational argument will have a rational effect on a man who does not want to adopt a rational attitude."
"Our knowledge can only be finite, while our ignorance must necessarily be infinite."
"Science may be described as the art of systematic over-simplification."
"Science must begin with myths, and with the criticism of myths."
"Piecemeal social engineering resembles physical engineering in regarding the ends as beyond the province of technology."