Another fantastic quote . . .
"If you find yourself in a fair fight, you didn't plan your mission properly."
- Col. Hackworth, United States Military
Any student of military history can tell that even the biggest, baddest, most well armed army can be shut down if their opposition is able to alter the playing field to their advantage.
It's the same in the every other field. Find your edge and you can make it in even the harshest environments.