数学中真正的挑战不是解决问题，而是提出正确的问题。
We may be older now, but the passion for performing is still the same.
农民的智慧往往来自观察土地在不同季节的教诲。
过去无法改变，但未来可以。
Continuous improvement isn't just a process, it's a mindset that should permeate every level of our organization.