关于理论最重要的事情是它应该是可测试的。
The best forestry practices are those that leave no trace but leave everything changed.
The spread of liberal democracy and the integration of the world economy have created a situation in which the major powers are no longer willing to risk war with one another.
Curiosity is the engine that drives us towards understanding the cosmos.
A vida é o que fazemos dela. As viagens são os viajantes. O que vemos não é o que vemos, senão o que somos.
我们做过价格弹性研究，答案总是我们应该提高价格。我们不这样做，因为我们相信--我们必须把这当作信仰的一篇文章--通过长期保持我们的价格非常非常低，我们会随着时间的推移赢得客户的信任，实际上这会在长期内最大化自由现金流。