The price of freedom is eternal vigilance.

Nature is the best teacher; it has already done the experiments, we just have to interpret them.

没有什么比煤矿工人更美国了。

Machinery and labor-saving devices are only valuable as they serve to reduce the cost of manufacture.

认证计划是负责任林业实践的底线，而不是上限。

Consumer preferences are shifting rapidly; adaptability is the new competitive advantage.

I'm not a celebrity. I'm a legend.