[one] Must Look Into Hell

To Avoid The Various Foolish Opinions To Which Mankind Are Prone, No Superhuman Genius Is Required. A Few Simple Rules Will Keep You, Not From All Error, But From Silly Error.

Heretical Views Arise When The Truth Is Uncertain, And It Is Only When The Truth Is Uncertain That Censorship Is Invoked.

Science Is At No Moment Quite Right, But It Is Seldom Quite Wrong, And Has, As A Rule, A Better Chance Of Being Right Than The Theories Of The Unscientific. It Is, Therefore, Rational To Accept It Hypothetically.

To Be Out Of Harmony With One's Surroundings Is Of Course A Misfortune, But It Is Not Always A Misfortune To Be Avoided At All Costs. Where The Environment Is Stupid Or Prejudiced Or Cruel, It Is A Sign Of Merit To Be Out Of Harmony With It.

The Free Intellect Is The Chief Engine Of Human Progress.