I am always most religious upon a sunshiny day.

I am no Platonist, I am nothing at all; but I would sooner be a Paulician, Manichean, Spinozist, Gentile, Pyrrhonian, Zoroastrian, than one of the seventy-two villainous sects who are tearing each other to pieces for the love of the Lord and hatred of each other.

More and more people care about religious tolerance as fewer and fewer care about religion.

A cosmic philosophy is not constructed to fit a man; a cosmic philosophy is constructed to fit a cosmos. A man can no more possess a private religion than he can possess a private sun and moon.

Where true religion has prevented one crime, false religions have afforded a pretext for a thousand.

In my religion there would be no exclusive doctrine; all would be love, poetry and doubt.

Intellectually, religious emotions are not creative but conservative. They attach themselves readily to the current view of the world and consecrate it.

All religions are ancient monuments to superstition, ignorance, ferocity; and modern religions are only ancient follies rejuvenated.

The cosmic religious experience is the strongest and the noblest driving force behind scientific research.

For a great nature, it is a happiness to escape a religious training,-religion of character is so apt to be invaded.