森林面临的最大威胁不是砍伐,而是漠不关心。
The greatest threat to our forests is not logging, but indifference.
La duda es el principio de la sabiduría.
The true teacher defends his pupils against his own personal influence. He inspires self-trust. He guides their eyes from himself to the spirit that quickens him. He will have no disciple.
Every day is a new opportunity.