Treat persons who profess to be able to cure disease as you treat fortune tellers.

It's so hard to know what to do when one wishes earnestly to do right.

I was a freethinker before I knew how to think.

The churches must learn humility as well as teach it.

The hand of the painter is incurably mechanical: his technique is incurably artificial... The camera... is so utterly unmechanical.

Every man is a revolutionist concerning the thing he understands. For example, every person who has mastered a profession is a skeptic concerning it, and consequently a revolutionist.

The conversion of Paul was no conversion at all; it was Paul who converted the religion that has raised one man above sin and death.