It is magnificent to grow old, if one keeps young.

Some things mankind can finish and be done with, but not ... science, that persists, and changes from ancient Chaldeans studying the stars to a new telescope with a 200-inch reflector and beyond; not religion, that persists, and changes from old credulities and world views to new thoughts of God and larger apprehensions of his meaning.

Democracy is not simply a political system; it is a moral movement and it springs from adventurous faith in human possibilities.

[L]ife ceases to be a fraction and becomes an integer.

He who picks up one end of a stick picks up the other. He who chooses the beginning of a road chooses the place it leads to. It is the means that determine the end.

No man need stay the way he is.

It is going to be a long, hard haul; it will require patience, courage, faith that hangs on when hope fails, if we are to tame the rude barbarity of man, so that the atomic age becomes a blessing, not a curse. There never was such a day for the Christian gospel. God help us all in these years ahead to make that gospel live in men and nations!