Ours is an age of criticism, to which everything must be subjected. The sacredness of religion, and the authority of legislation, are by many regarded as grounds for exemption from the examination by this tribunal, But, if they are exempted, and cannot lay claim to sincere respect, which reason accords only to that which has stood the test of a free and public examination.

Man must be disciplined, for he is by nature raw and wild.

The two great dividers are religion and LANGUAGE

The instruction of children should aim gradually to combine knowing and doing. Among all sciences mathematics seems to be the only one of a kind to satisfy this aim most completely.

Human beings are never to be treated as a means but always as ends.

Reason should investigate its own parameters before declaring its omniscience.

By a lie, a man... annihilates his dignity as a man.