YES ....though we've loved so long, so well,
Imperious duty bids us part;
But though thy breast with anguish swell,
A pang more lasting tears my heart.

My grief is dumb,....loquacious thine,
The mournful hoard I sacred keep;
Thou seekest crowds, alone I pine;
My eyes are dry, but thine can weep.

Then, whatsoe'er thy lips have vowed,
A truer sorrow sways my soul;
For shallow streams run bright and loud,
Deep waters darkly silent roll.

Amelia Opie

http://www.poemhunter.com/poem/song-yes-though-we-ve-loved-so-long/