Opportunities flit by while we sit regretting the chances we have lost, and the happiness that comes to us we heed not, because of the happiness that is gone.
当我们坐着追悔失去的机会时,新的机会悄然飞逝;因为惦记已经逝去的幸福,我们也忽略了正来到身边的幸福。
— Jerome K. Jerome · The Idle Thoughts of an Idle Fellow · On Memory —