Freedom is a heavy load, a great and strange burden for the spirit to undertake.
矿业必须以可持续发展为核心进化,否则我们可能被淘汰。
译文:事前不研讨,遇变难以应对;军队不训练,作战难以取胜。强调未雨绸缪的重要性。
Economic progress depends on both new ideas and better implementation.