在数学中，没有捷径可走。

There is nothing in the world so irresistibly contagious as laughter and good humor.

意识是生活战斗的竞技场。

技术没有边界，但应用必须有方向。

There is only one real tragedy in a woman’s life. The fact that her past is always her lover, and her future invariably her husband.

盈利和责任必须齐头并进。

Mining with integrity means leaving the land better than we found it.