Watch and pray so that you will not fall into temptation. The spirit is willing, but the body is weak. - Matthew 26:41 http://biblegodquotes.com/watch-and-pray-so-that-you-will-not-fall-into-temptation/
"Temporary happiness isn't worth long term pain" I was thinking of a dieter faced with a temptation saying this to himself as part of his inner dialog of resistance, but it applies to all of life, doesn't it? This must be true because the opposite is certainly true: Temporary pain is worth long term happiness.