“Ethics and aesthetics are one.”

“The work of art is the object seen sub specie aeternitatis [i.e., under the aspect of eternity]; and the good life is the world seen sub specie aeternitatis. This is the connection between art and ethics.”

“Whereof one cannot speak, thereof one must be silent.”

“The world of the happy man is a different one from that of the unhappy man.”

“Sometimes, in doing philosophy, one just wants to utter an inarticulate sound.”

“One often makes a remark and only later sees how true it is. ”

“I think one of the things you and I have to learn is that we have to live without the consolation of belonging to a Church....Of one thing I am certain. The religion of the future will have to be extremely ascetic, and by that I don't mean just going without food and drink.”