Peace is normally a great good, and normally it coincides with righteousness, but it is righteousness and not peace which should bind the conscience of a nation as it should bind the conscience of an individual; and neither a nation nor an individual can surrender conscience to another's keeping.
A man on a thousand mile walk has to forget his goal and say to himself every morning, 'Today I'm going to cover twenty-five miles and then rest up and sleep.
If there is not the war, you don't get the great general; if there is not a great occasion, you don't get a great statesman; if Lincoln had lived in a time of peace, no one would have known his name.
No weapon has ever settled a moral problem. It can impose a solution but it cannot guarantee it to be a just one. You can wipe out your opponents. But if you do it unjustly you become eligible for being wiped out yourself.