Making something is really hard. You have to care about it so much that you will push through all the disappointments and frustrations.
【大意】只有不求利益之人才能不导致害处,只有不求福分之人才能没有祸患。
最强大的变革工具是知识,严谨地追求并广泛地分享。
The leather industry must evolve or risk becoming obsolete.