“Where there is the necessary technical skill to move mountains, there is no need for the faith that moves mountains.”

“Faith in a holy cause is to a considerable extent a substitute for the lost faith in ourselves.”

“It is startling to realize how much unbelief is necessary to make belief possible.”

“Absolute faith corrupts as absolutely as absolute power.”

“Even the sober desire for progress is sustained by faith—faith in the intrinsic goodness of human nature and in the omnipotence of science. It is a defiant and blasphemous faith, not unlike that held by the men who set out to build a "city and a tower, whose top may reach unto heaven" and who believed that "nothing will be restrained from them, which they have imagined to do.”

“You can never have enough of that which you don’t need.”

“Compassion is the antitoxin of the soul: where there is compassion even the most poisonous impulses remain relatively harmless.”