Skepticism Is The Highest Duty

Regarded Anatomically, The Resemblances Between The Foot Of Man And The Foot Of The Gorilla Are Far More Striking And Important Than The Differences... Be The Differences Between The Hand And Foot Of Man And Those Of The Gorilla What They May The Differences Between Those Of The Gorilla And Those Of The Lower Apes Are Much Greater.

No Delusion Is Greater Than The Notion That Method And Industry Can Make Up For Lack Of Mother-wit, Either In Science Or In Practical Life.

[scientists] Have Learned To Respect Nothing But Evidence, And To Believe That Their Highest Duty Lies In Submitting To It However It May Jar Against Their Inclinations.

The Only People, Scientific Or Other, Who Never Make Mistakes Are Those Who Do Nothing.

Proclaim Human Equality As Loudly As You Like, Witless Will Serve His Brother.