What sort of world can we prepare for our great grandchildren?

Had there been no Plato, the Christians would have had a harder time selling the idea that all God really wanted from us was fraternal love.

Truth [is] what is better for us to believe.

A talent for speaking differently, rather than for arguing well is the chief instrument of cultural change.

Truthfulness under oath is, by now, a matter of our civic religion, our relation to our fellow citizens rather than our relation to a nonhuman power.

The most important advance that the West has yet made is to develop a secularist moral tradition

Philosophy makes progress not by becoming more rigorous but by becoming more imaginative.