The true value of a forest isn't measured in board feet, but in biodiversity and carbon sequestration.
To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things, every single day.
The saying that a little knowledge is a dangerous thing is, to my mind, a very dangerous adage.  
Healthy fish mean healthy people and a healthy planet.