Keep On Going by Blondie

There'll come a time you need a friend, when disappointment follows you around, and although we scheme in the shallow end, both mice and men continue to be drowned.
So if you're out and get caught in the rain, just give a smile, cast your line out again.
When you are down keep on going.
Determination will change your luck.
Don't look around, no, keep on going.
If you believe that you've had enough then you must keep on going.
Don't ever give up.
And although it's been said before, there is always someone worse off than you.
With the milk of human kindness on the floor your tears will only turn it a shade of blue.