At that time, everyone was excited about finding intelligent life.

那时候，每个人都为发现智能生命而感到兴奋。

Do you believe there's intelligent life in the universe?

你相信宇宙里有智能生命吗？

Mind you, I'm not talking about intelligent life — just life itself.

请注意，我说的不是智慧生命——只是生命本身。

If intelligent life emerges again, it might be able to work out what happened.

如果智慧生命再次发展，他们可能会想去了解之前发生了什么。

You might think of this paper, then, like a treasure map, for intelligent life.

你也许想到这篇研究对寻找智能生命就像一张藏宝图一样。

In it, he developed a theory that intelligent life had created waterways all over the surface of Mars.

在这本书里，他提出了一个理论，智慧生命在整个火星的表面创造了水渠。

While it doesn't seem likely that intelligent life was here before us, that doesn't mean there wasn't any.

没有史前智慧生命存在的明显证据，不意味着它们不存在。

Preferring new activities and variety over routines and trusted patterns is one of the ways that the highly intelligent life.

高智商人生活的一种方式便是相较于常规和可信的模式，更喜欢新的活动和变化。

Space is so enormously huge that the chance of there being intelligent life somewhere in outer space is pretty good.

太空是一个巨大的空间，以至于在外太空的某个地方存在有智的可能性非常大。

Is there other intelligent life out there?

那里还有其他智慧生命吗？

They could not find any intelligent life.

他们找不到任何智慧生命。

Physical artifacts would be the most concrete evidence of past intelligent life, but it's not very likely that we will ever find any.

实体手工制品是过去智慧生命存在的最有力证据，但我们不太可能找到这些证据。

But are we sure intelligent life is even out there?

但是我们确定智慧生命就在那里吗？

However, a strong thermodynamic arrow is necessary for intelligent life to operate.

然而，要让智能生命运行，需要强大的热力学箭头。

Thus intelligent life could not exist in the contracting phase of the universe.

因此智慧生命不可能存在于宇宙的收缩阶段。

The question of intelligent life, somewhere there, as we have construed intelligence, so-called.

智能生命的问题， 在某个地方，正如我们所解释的智能， 所谓的。

And if you'd like to become a more intelligent life form, might I suggest subscribing?

如果你想成为一种更聪明的生命形式，我可以建议订阅吗？

Potentially, humans have not encountered  aliens, because the Great Filter limits the spread of intelligent life throughout  our galaxy.

潜在地，人类没有遇到外星人，因为大过滤器限制了智慧生命在我们银河系中的传播。

Since straight lines do not normally appear in nature, Schiaparelli sketches gave birth to the idea that some form of intelligent life must exist on Mars.

由于自然界没有看到过直线，齐亚巴雷利勾画的时候产生了念头即火星上应该存在智能生命的某种形态。

The best part was discovering a subterranean city on Mars: the first evidence of intelligent alien life ever found.

最精彩的部分是在火星上发现了一座地下城市：有史以来发现的第一个外星智慧生命证据。