I fear that, in the end, the famous debate among materialists, idealists, and dualists amounts to a merely verbal dispute that is more a matter for the linguist than for the speculative philosopher

I am, therefore there is a God.

Reader! To whatever visible church, synagogue, or mosque you may belong! See if you do not find more true religion among the host of the excommunicated than among the far greater host who excommunicated them.

My religion recognizes no obligation to resolve doubt other than through rational means; and it commands no mere faith in eternal truths

When Socrates was about 30, and his father was long dead, he was still pursuing the art of sculpture, but from necessity, and without much inclination.

Consciousness of myself, combined with complete ignorance of everything that does not fall within my sphere of thinking, is the most telling proof of my substantiality outside God, of my original existence

Judaism boasts of no exclusive revelation of eternal truths that are indispensable to salvation, of no revealed religion in the sense in which that term is usually understood.