It's one of my favorite quotes. Funny thing is that another of my favorites is based from that quote. It's from Team Fortress 2--Meet the Soldier:
If fighting is sure to result in victory, then one must fight. Even if it's against the will of ones King (lord). But if fighting is sure to result in defeat, then one must retreat--even if your King (lord) commands you to fight.
If fighting is sure to result in victory, then one must fight. Sun Tzu said that, and I'm pretty sure he knows a bit more about fighting than you, pal. Because, he invented it and perfected it so that no man may beat him in the ring of honor!
Then he used his fight money to buy two of every animal, herded them on to a boat and BEAT THE CRAP OUT OF EACH AND EVERY SINGLE ONE!!! And from that day on, whenever a bunch of animals are put together in the same place; it's called a zoo...
Unless it's a farm!!