All men are immortal， but those who are not educated are immortal in a lower and less enviable sense.

80% of life's most defining moments take place by age 35.

We don't inherit the oceans from our ancestors; we borrow them from our children.

如果你从未跌倒过，那么你也就从未努力过。

创新是将矿业转变为全球进步力量的关键。