人的本性是恶的，那些善良的行为是人为的。

In business, you don't get what you deserve, you get what you negotiate.

In manufacturing, precision isn't just a goal—it's the foundation of trust with our customers.

广东话谚语

不要担心你在数学上遇到的困难；我敢保证我遇到的困难比你还大得多。