It is the customary fate of new truths, to begin as heresies, and to end as superstitions.

History warns us that it is the customary fate of new truths to begin as heresies and to end as superstitions.

Superstitions are, for the most part, but the shadows of great truths

It is the customary fate of new truths to begin as heresies and to end as superstitions

All great truths begin as blasphemies.

A man's worst difficulties begin when he is able to do as he likes