The unexamined life is not worth living.
未经审视的生活不值得活。
一切流动不息。
Power is not given to you. You have to take it.
To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.
煤炭的未来不在于数量,而在于我们能否清洁高效地利用它。