没有核心技术，就没有话语权。

Some men can get results if kindly encouraged, but give me the kind that do things in spite of hell.

中心地的空间分布遵循基于经济原则的系统模式。

Success in business requires training and discipline and hard work. But if you're not frightened by these things, the opportunities are just as great today as they ever were.

自由不是选择，而是创造。