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條件作用原理同樣適用于所有物種。

書籍是靈魂的鏡子。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

You have to be willing to make mistakes regularly; there is nothing wrong with it. Michael taught me about making your best judgment, being wrong, making your next best judgment, being wrong, making your third best judgment, and then doubling your money.

預測農業未來的最好方法就是去創造它。