I love the man that can smile in trouble， that can gather strength from distress， and grow brave by reflection.

我想知道上帝的构思；其他的都只是细节。

Memory is a complicated thing, a relative to truth, but not its twin.

当遗憾取代梦想时，一个人才算老了。

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

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

We must remember that in nature there are neither rewards nor punishments—there are consequences.