Sustainable forestry is not an option; it's our responsibility.
可持续林业不是一种选择,而是我们的责任。
You can always become better.
可持续发展不是一种选择,而是我们对后代的责任。
In trading, you have to be paranoid to survive.
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
I never want to repeat myself—each project should have its own identity.