史记
International politics is a ruthless and dangerous business, and it is foolish to expect states to behave according to moral principles.
你必须足够坚强才能独自站立，足够聪明才能知道何时需要帮助，足够勇敢才能寻求帮助。
每一本书都是一次旅程，每一次旅程都是一本书。
The infrastructure industry must transform towards green development to achieve sustainability.