系统生产需求的速度比满足需求的速度更快,因此它自我延续。
The historian's first duty is to tell the truth as he sees it, regardless of whom it pleases or displeases.
道德领导力不是追求完美,而是承担责任。
I’m not afraid of falling, I’m afraid of the ground.
"Libraries are the treasure chests of the world."