Education is the foundation of sustainable forestry—people protect what they understand.
教育是可持续林业的基础，人们保护他们所理解的事物。
The reason why men enter into society is the preservation of their property.
Investing in new technologies is not optional; it's a necessity for the future of energy.
译文：纵欲放荡、消极怠慢就不能勉励心志使精神振作，冒险草率、急躁不安就不能修养性情。
The development of the vital forms under the influence of external conditions is a subject of the highest importance.
幸福晚年的秘诀在于要有好的记性和坏的记性。