The key to success in this industry is not just technology, but also understanding the market and customer needs.

解释：不可以不知道活着的乐趣，也不可以不知道虚度光阴的担忧。

The biggest reward is not financial gain, but the ability to impact people's lives in a positive way.

最可持续的采石场是能够平衡生产和环境管理的采石场。

股市中充满了知道一切价格却不知道任何价值的人。