Once you accept an idea, it's an idea whose time has come.

One hears of the mechanical equivalent of heat. What we now need to discover in the social realm is the moral equivalent of war: something heroic that will speak to men as universally as war does, and yet will be as compatible with their spiritual selves as war has proved itself to be incompatible.

I don't sing because I'm happy; I'm happy because I sing.

Much of what we call evil is due entirely to the way men take the phenomenon. It can so often be converted into a bracing and tonic good by a simple change of the sufferer's inner attitude from one of fear to one of fight; its string can so often depart and turn into a relish when, after vainly seeking to shun it, we agree to face about and bear it.

If theological ideas prove to have a value for concrete life, they will be true, for pragmatism, in the sense of being good for so much. How much more they are true, will depend entirely on their relations to the other truths that also have to be acknowledged.

Success or failure depends more upon attitude than upon capacity.

Could the young but realize how soon they will become mere walking bundles of habits, they would give more heed to their conduct while in the plastic state.