Sustainability isn't an option - it's our responsibility to future generations.

Secrets are like shadows - they grow longer with time.

解释：兄弟之间虽然会因谗言而起争执，但在遇到外人的侮辱时仍应一致对外。

Change is uncomfortable, but it's necessary for progress.

质量和效率是提升竞争力的关键。