Without freedom there can be no morality.
没有自由就不会有道德。
社会正义的首要组成部分是全人类都有足够的食物。
We are all creatures of our landscape; it dictates behavior and even thought in the measure to which we are responsive to it.
Literature is the record of human experience.
战争是危险的领域，因此勇气是战士的首要品质。
理解经济周期的关键在于认识到它们是对实际冲击的均衡反应。
Innovation in forestry isn't about replacing nature, but enhancing our partnership with it.《The Green Leadership》