海伦凯勒的“一扇幸福之门对你关闭的同时,另一扇幸福之门却你你面前洞开了”英文原话是怎么说的,

When one door of happiness closes,another opens;
but often we look so long at the closed door that we don’t see the one which has been opened for us.
----by Helen Keller
当一扇幸福之门关上时,另一扇就会开启;
但我们常常会长时间地停留在关闭的门前,而没有看到另一扇为自己开启的门.