历史学家必须与其研究对象有某种亲缘关系。死者不会开口，除非你以恰当的方式呼唤他们。
The historian must have some kinship with his subject. The dead will not speak unless they are properly addressed.
Technology is a tool; users are the core.
The energy industry is at a pivotal moment, and we must embrace innovation to meet the world's growing energy needs while addressing environmental challenges.
解释：君子所说的话，可靠而且有证据。
The best illustrations are those that leave room for the reader's imagination.
In one of the stars I shall be living. In one of them I shall be laughing. And so it will be as if all the stars were laughing, when you look at the sky at night… You-only you-will have stars that can laugh…