"I am not apt to follow blindly the lead of other men."

"I feel most deeply that the whole subject is too profound for the human intellect. A dog might as well speculate on the mind of Newton."

"To kill an error is as good a service as to establish a new truth."

"We are like a judge who has to sum up and deliver judgment, not on the evidence of witnesses, but on the arguments of counsel."

"I have gradually come to disbelieve in Christianity as a divine revelation."