好的政策需要健全的理论和实证验证。
Good policy requires both sound theory and empirical validation.
林业技术应该服务于可持续性，而不仅仅是效率。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
成功不是终点，失败也并非致命，重要的是继续前进的勇气。