解释：药物之间有阴阳、子母、兄弟等配对关系，说明药物配伍的原理。

最成功的林业公司将是那些将可持续性作为每个决策核心的公司。

你不是你的环境。你是你的可能性。

Economics is the study of how societies use scarce resources to produce valuable goods and services and distribute them among different individuals. If we think about the definitions, we find two key ideas that run through all of economics:

The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.

The best way to destroy the capitalist system is to debauch the currency.