- Liberty of thought is in itself a good; but it gives an opening to false liberty. - John Henry Newman, Apologia pro vita Sua, 1864
- A mans worst difficulties begin when he is able to do as he likes. - Thomas Huxley, “Address on University Education,” Collected Essays, 1902, III, 236.
- No man in this world attains to freedom from any slavery except by entrance into some higher servitude. There is no such thing as an entirely free man conceivable. - Phillips Brooks (1835-1893), Perennials