知识最大的敌人不是无知，而是知识的幻觉。

林业的短期收益往往会导致地球的长期损失。

任何有所作为的人都一定会受到批评、诽谤和误解。这是伟大的代价的一部分，每个伟人都明白这一点。

There are things that happen and leave no discernible trace, are not spoken or written of, though it would be very wrong to say that subsequent events go on indifferently, all the same, as though such things had never been.

当数据和直觉一致时，才能做出最佳决策。