Know the land, fight for the land, but stay true to this lucid advice from Edward Abbey.
Do not burn yourselves out. Be as I am - a reluctant enthusiast...a part-time crusader, a half-hearted fanatic. Save the other half of yourselves and your lives for pleasure and adventure. It is not enough to fight for the land; it is even more important to enjoy it. While you can. While it is still here. So get out there and hunt and fish and mess around with your friends, ramble out yonder and explore the forests, climb the mountains, bag the peaks, run the rivers, breathe deep of that wet sweet and lucid air, sit quietly for awhile and contemplate the precious stillness, the lovely mysterious and awesome space. Enjoy yourselves, keep your brain in your head and your head firmly attached to the body, the body active and alive and I promise you this much: I promise you this one sweet victory over our enemies, over those desk-bound men with their hearts in a safe-deposit box and their eyes hypnotized by desk calculators. I promise you this: you will outlive the bastards.