https://en.wikipedia.org/wiki/Bertrand_Russell
“It is not what the man of science believes that distinguishes him, but how and why he believes it. His beliefs are tentative, not dogmatic; they are based on evidence, not on authority or intuition.”
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.”
“The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd.”
“The time you enjoy wasting is not wasted time.”
“The good life is one inspired by love and guided by knowledge.”