If you start by promising what you don't even have yet, you'll lose your desire to work towards getting it.

If you start by promising what you don't even have yet, you'll lose your desire to work towards getting it.

如果你一开始就承诺你甚至还没有的东西，你就会失去努力实现它的欲望。

-- Paulo Coelho 保罗·柯艾略