The extremes of jungles, mountains, and deserts are inherently dangerous places.
You can't live someone else's expectations in life. It's a recipe for disaster.
I do see a lot of the hard end of ecology, and my feeling is that we live on a super-exciting planet but a super-fragile one.
Once a job it has begun, do not stop until it's done. Whether it is big or small, do it well or not all.
The greatest journeys all start with a single step.
The rewards of the wild and the rewards of the survivor go to those who can dig deep, and, ultimately, to the guy who can stay alive.