人生的每一门课程会随时间依次呈现给你。掌握所需的一切能力取决于你的内心。一旦你真正掌握了一门课的精髓，你自然就会进入下一门课。只要你还活着，你就仍然有课要学。

Energy security is a crucial part of national strategic security, and we must firmly keep it in our own hands.

The man who writes about himself and his own time is the only man who writes about all people and about all time.

Pain is temporary. Quitting lasts forever.

最悦耳的声音，莫过于对自己的赞美。