When one door of happiness closes, another opens; but often we look
so long at the closed door that we do not see the one which has been opened for us.
当幸福的一扇门关闭时，另一扇门便会敞开；但由于我们通常都久久凝视着那扇紧闭的门，竟没有注意到另一扇门已经为我们敞开。
