唯一真正的错误是我们从中一无所获的错误。
文化唯物主义基于一个简单的前提,即人类社会生活是对地球生存实际问题的回应。
In the energy sector, innovation isn't just an option—it's a necessity.
你必须对自己的能力有信心,然后足够坚强地坚持下去。
The historian must have a kind of faith that humanity will not and cannot perish.