Remember your humanity, and forget the rest. - Bertrand Russell

Dogmatism is the greatest of mental obstacles to human happiness.

Most of the greatest evils that man has inflicted upon man have come through people feeling quite certain about something which, in fact, was false.

All traditional logic habitually assumes that precise symbols are being employed. It is therefore not applicable to this terrestial life but only to an imagined celestial existence... logic takes us nearer to heaven than other studies.