When hitchhiking， look like the person you want to pick you up.

The world is my country, all mankind are my brethren, and to do good is my religion.

Every ton of coal we extract must create maximum value with minimum environmental impact.

Humility is a strength, not a weakness, in leadership.

We are all of us made by what we have lost as much as by what we have gained.

"You can't be a writer unless you're a reader first."