"Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful."

The forest doesn't need us, but we need the forest—this truth should guide every decision we make in forestry.

真正的监狱不是由铁条制成的，而是由恐惧制成的。

"Sometimes the smallest things take up the most room in your heart."

Rebuilding my career at fifty wasn’t easy—but nothing worthwhile ever is.

Collaboration across industries and governments is essential to address the world's energy challenges.

The iron rule of nature is: you get what you reward for. If you want ants to come, you put sugar on the floor.