Happiness is a butterfly, which, when pursued, is always just beyond your grasp, but which ,if you will sit down quietly, may alright upon you. ——N.Hawthorn 幸福是一只蝴蝶，你追的时候总是追不到，但是如果你愿意安静地坐下来，它也许会飞落在你的身上。——N.霍桑