The hardest thing to cope with is not selfishness or vanity or deceitfulness, but sheer stupidity.

The proselytizing fanatic strengthens his own faith by converting others. The creed whose legitimacy is most easily challenged is likely to develop the strongest proselytizing impulse.

Men weary as much of not doing the things they want to do as of doing the things they do not want to do.

The poor on the borderline of starvation live purposeful lives. To be engaged in a desperate struggle for food and shelter is to be wholly free from a sense of futility

...That genius is a rare exception (:) It's not true. Talent and genius have been wasted on enormous scale throughout our history; this is all I know for sure.

A heresy can spring only from a system that is in full vigor.

Jesus was not a Christian, nor was Marx a Marxist.