Don't Quit

I liked the following lines ever since I read them. But here's where I also encounter a subtle but a major difference between liking and following. In my point of view the below lines are the only ones that filters a winner out of losers.
The poem also emphasizes the power of positive thinking.

Don’t Quit:

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 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 fellow turns about,
When he might have won had he stuck it out.
Don’t give up though the pace seems slow,
You might succeed with another blow,

Often the goal is nearer than,
It seems to a faint and faltering man;
Often the struggler has given up,
When he might have captured the victor’s cup;
And he learned too late when the night came down,
How close he was to the golden crown.

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 when it seems afar;
So stick to the fight when you’re hardest hit,
It’s when things seem the worst that you must not quit.

Author Unknown