If you start out by promising what you don't even have yet， you'll lose your desire to work toward getting it.
如果你一开始就承诺你还没有的东西，你会失去为之努力的欲望。
我喜欢快乐，我喜欢玩乐。我喜欢和积极快乐的人在一起。
债务要么产生于契约，要么产生于侵权行为。