All religions have periods in their history which are looked back to with retrospective fear and trembling as eras of persecution, and each religion has its own book of martyrs. – Richard Le Gallienne

Religion is regarded by the common people as true, by the wise as false, and by the rulers as useful. – Seneca the Younger

I do engineering, not religion. – Daniel J. Bernstein

Cruel persecutions and intolerance are not accidents, but grow out of the very essence of religion, namely, its absolute claims. – Morris Raphael Cohen