林业创新不是可选项，而是生存的必需。
Innovation in forestry isn't optional—it's essential for survival.《The Green Frontier》
"You don't have to understand everything to love it."
I think the most important thing in life is to be happy.
The ground for taking ignorance to be restrictive of freedom is that it causes people to make choices they would not have made had they seen what their choices involved.
对一项神圣事业的信仰相当程度上替代了已经失去的自信。
All complex behavior can be reduced to simpler stimulus-response units.
