Struggle not with thy life!—the heavy doom
Resist not, it will bow thee like a slave:
Strive not! thou shalt not conquer; to thy tomb
Thou shalt go crushed, and ground, though ne'er so brave.
Complain not of thy life!—for what art thou
More than thy fellows, that thou shouldst not weep?
Brave thoughts still lodge beneath a furrowed brow,
And the way-wearied have the sweetest sleep.
Marvel not at thy life!—patience shall see
The perfect work of wisdom to her given;
Hold fast thy soul through this high mystery,
And it shall lead thee to the gates of heaven.

Frances Anne Kemble

http://www.poemhunter.com/poem/lines-written-in-london/