An inspirational poem I read somewhere:

Dont’ quit
When things go wrong as they sometimes will,
When the road you’re trudging seems all up hill
When the funds are low and the debts are high,
And you want to smile, but you have to sigh
When care is pressing you down a bit,
Rest, if you must, but don’t you quit
Life is queer with its twists and turns,
As everyone of us sometimes learns.
And many a failure turns about
When he might have won had he stuck it out.

Don’t give up though the pace seems slow,
You may succeed with another blow
Success is failure turned inside out,
The silver tint of the clouds of doubt

And you never can tell how close you are
It may be near and it seems so far
So stick to the fight when you’re hardest hit
It’s when things seem worst that you must not quit.