Don't quit

One of my favorite. via billy_cox

When things go wrong, as they sometimes will;
When the road you're trudging seems all uphill;
When the funds are low and the debts are high;
And you want to smile but you have to sigh.
When all is pressing you down a bit-
Rest if you must, but don't you quit
Success is failure turned inside out;
The silver tint on the clouds of doubt;
And you can never tell how close you are;
I may be near when it seems far.
So stick to the fight when you're hardest hit -
It's when things go wrong that you must not quit.

• John Greenleaf Whittier