历史学家必须怀有一种信念:人类不会也不能灭亡。
The historian must have a kind of faith that humanity will not and cannot perish.
The best way to predict the future is to create it.
There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.
The secret of change is to focus all of your energy, not on fighting the old, but on building the new.