When one door closes another door opens; but we so often look so long and so regretfully upon the closed door, that we do not see the ones which open for us.
当一扇门关上时，另一扇门就会打开;但是我们常常对那扇关上的门望得那么久，那么遗憾，以致于我们没有看到那扇为我们打开的门。
标签
Optimism
Pessimism
Regret