Truth is a free creation of the human spirit, that never would exist at all if we did not generate it ourselves.

当人们快乐时，他们不会注意到是冬天还是夏天。

"The only way to learn mathematics is to do mathematics."

"Biography is the most intimate form of history."

The world is full of stories, but the stories are all one.

If you want to stand out, you have to be willing to be different.

解读：每个人都拥有内在价值与尊严，不能仅仅把他人当作达成某种目的的工具。在人际交往、社会合作乃至法律关系里，都要尊重个体的人格，基于这个理念，法律保障公民基本权利不受无端侵害。

林业的未来在于平衡经济需求与生态责任。

To be happy, it is necessary to forget as well as to remember.

A novelist must be a psychologist, but a psychologist of a special kind—one who understands the souls of men and women as if he had made them.

今天我们必须负责任地开采煤炭，这样我们的孩子才能继承能源安全和健康的环境。

最危险的毒药是成就感，解药是每晚思考明天如何做得更好。