Innovation in leather tanning isn't just about new chemicals; it's about rethinking the entire lifecycle of the material.
Time does not move in a straight line; it folds back on itself.
所以,父母、老师、国君三者,都不能当作做事的法度。 
挑战不仅在于收集数据,还在于以改善生活的方式理解数据。