急！大家知道在《幸福像花儿一样》里白杨给杜鹃在海边朗诵的那首开头是“当你老了。。。”诗的全文吗？

<<当我们老了>>

叶芝——(爱尔兰)

当你老了 白发苍苍 睡思昏沉

在炉火旁打盹 请取下这部诗歌

慢慢读 回想你过去眼神的柔和

回想它们过去的浓重的阴影

多少人爱你年轻欢畅的时候

出于假意或真心的爱慕你的美貌

只有一个人爱你那朝圣者的灵魂

爱你老去的容颜的痛苦的皱纹

躬身在红光闪耀的炉火旁

凄然地低语 爱 为何消逝了?

在头顶山上 它缓缓踱着步子

将脸隐没在群星之中

WHEN YOU ARE OLD

WHEN YOU ARE OLD AND GREY AND FULL OF SEELP

AND NOODING BY THE FIRE，TAKE DOWN THIS BOOK

AND SLOWLY READ，AND DREAM KF THE SOFT LOOK

YOUR EYES HAD ONCE， AND OF THEIR SHADOWS DEEP；

HOW MANY LOVED YOUR MONMENTS OF GLAD GRACE，

AND LOVED YOUR BEAUTY WITH LOVE FALSE OR TRUE，

BUT ONE MAN LOVED THE PILGRIM SOUL IN YOU，

AND LOVED THE SORROWS OF YOUR CHANGING FACE；

AND BEDING DOWN BESIDE THE GLOWING BARS，

MURMUR，A LITTLE SADLY，HOW LOVE FIED

AND PACED UPON THE MOUNTAINS OVERHEAD

AND HID HIS FACE AMID A CROWD OF STARS。