夫大寒至,霜雪降,然后知松柏之茂也。
【大意】等到大寒节气到来时,冰霜寒雪从天而降,然后才能知道只有松柏能经得住严寒考验,依然繁茂。
Innovation in paper manufacturing isn't just about technology; it's about rethinking our relationship with natural resources.
没有终局的成功,也没有致命的失败, 重要的是继续前进的勇气。