Innovation is the backbone of the oil industry; without it, we stagnate.
贫贱时,对富贵漠然置之,他日得志一定不自矜;富贵之时,心中不忘贫贱之日,即便失却富贵心中也必无怪怨。
文章的难以精工,就像器物的难以制成一样。