学习数学的唯一方法就是做数学。

在采矿业，安全不是优先事项，而是一种价值观。

我最大的幸福就是能够用歌声感动别人。

要使婚姻长久，就需克服自我中心意识。

The act of creation is an act of birth.

恐惧只是一道阴影。事实上，你比自己想象的要强大得多。

Humor is a way to deal with the absurdity of life.

Sustainability isn't a cost center; it's the biggest business opportunity of our lifetime.