Certification standards are more than paperwork—they're our promise to the planet.

Stay hungry, stay foolish.

逻辑学的研究是关于正确推理原则的研究。

The opportunity does not go hand in hand, so when they come, you’d better hold them.

神圣的观念在任何社会中都是最保守的观念之一，因为它试图将其他观念——不确定性、进步、变化——变成罪行。

被爱的最好方法是去爱。

High-quality development in the coal industry must prioritize safety first.