不幸的是，我们久经考验的、精致的大脑在这项神经回路上经常哑火。
Unfortunately, our exquisitely sophisticated brains may make this predator-defense circuit vulnerable to misfiring.
作为这样的一个社会，我们是这个世界中的奇迹和神秘之物，因为那久经考验的自由与这个地球的富饶相比是更大的祝福。
Being so, we are the marvel and the mystery of the world, for that enduring liberty is no less a blessing than the abundance of the earth.
然而，他们归来后的经历对我们也同样很有启迪，因为它印证了一个久经考验的道理：绝对不要虚度生活在自由中的每一天。
But their experience back home is also inspirational, for it teaches us that perhaps the most enduring lesson of all is the absolute necessity of making every day lived in freedom count.
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