行动和知识不是彼此的障碍。
Action and knowledge are not obstacles to each other.
真正的森林管理意味着为后来者留下一些树木——以及一些利润。
世界是一本书，不旅行的人只读了一页。
"I don't want to be at the mercy of my emotions. I want to use them, to enjoy them, and to dominate them."
"The function of thought is to guide action."
我写作不是为了解释世界，而是为了理解世界。