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We don't inherit the earth from our ancestors; we borrow it from our children—this is especially true in forestry.
我们不是从祖先那里继承地球;我们是从子孙那里借来的——这在林业中尤其如此。
The most important things are the hardest to say.
The secret of change is to focus all of your energy not on fighting the old, but on building the new.
The past is a foreign country; they do things differently there.
The environment shapes behavior through the mechanism of reinforcement.
"记忆是最残酷的暴君,也是最仁慈的救主。"