德蕾莎修女的名言是：If you want to be happy, set a goal that is beyond yourself; then when you at last achieve it, you will still be beyond yourself, and new goals will always be available to expand your horizons and increase your happiness.（如果你想得到快樂，設定一個超越自己的目標，那么當這個目標實現的時候，你依然會感到自己已經超越了原本身，總是會有新的目標等待你去開拓和增加你的快樂。）"
其英文表達為：If you want to be happy, set a goal that is beyond yourself, and when you finally achieve it, you will still be beyond yourself, and new goals will always be available to expand your horizons and increase your happiness. - Mother Teresa.