Paul Karl Feyerabend said this quote

Progress has always been achieved by probing well-entrenched and well-founded forms of life with unpopular and unfounded values. This is how man gradually freed himself from fear and from the tyranny of unexamined systems.

~ Paul Karl Feyerabend

All religions are good 'in principle' - but unfortunately this abstract Good has only rarely prevented their practitioners from behaving like bastards.

~ Paul Karl Feyerabend

The best education consists in immunizing people against systematic attempts at education.

~ Paul Karl Feyerabend

Science is essentially an anarchic enterprise: theoretical anarchism is more humanitarian and more likely to encourage progress than its law-and-order alternatives.

~ Paul Karl Feyerabend