一份不允许我用武力捍卫自己免受攻击的契约总是无效的。
A covenant not to defend myself from force， by force， is always void.
Sustainable farming isn't a cost—it's the smartest investment we can make.
土地是我们的母亲，河流是我们的血液。我们活着，因为土地活着。
In science, the most dangerous phrase is 'We've always done it this way.'
避免错误的唯一方法就是没有新想法。