With so many stars in space, are we alone, or is there life on other planets in space?
太空中有这么多恒星，我们是唯一的吗，或者太空中其他行星上存在生命吗？
"Maybe we can answer the age-old question 'Are we alone?'"
也许到时候我们就可以回答那个古老的问题了——‘我们是孤单的吗？’
According to meme theory, humans are radically different from all other species because we alone are meme machines.
根据这一理论，人类与所有其他物种的本质区别在于我们是唯一的一种模因机器。
Therefore, we alone must make something of ourselves, transforming ourselves into the instruments for experiencing the deepest spiritual essence of life.
因此，我们必须做点什么，引导我们自己去经历生活最深层的精神实质。
Are we alone in this universe?
在宇宙中仅存在我们人类吗？
Are we alone here in this universe?
难道只有我们在这个宇宙中吗？
只有我们吗？
Ever look at the sky and wonder "Are we alone in the universe?"
许多人曾经仰望天空并且怀疑：“浩瀚宇宙中我们是孤单的吗？”
We are able to ask the question "are we alone in the universe?"
我们能够问出“我们在宇宙中是孤家寡人吗？”
This is an important discovery to answer the question 'Are we alone?
对于回答'我们是唯一的吗？ '这个问题，这个发现非常重要。
How life originated is very closely tied to the question, are we alone?
人们对于生命的起源疑问与此息息相关，在这个世界上我们是孤独的吗？
It has been well said that while other countries have a climate, we alone in England have weather.
有一句话说的好，别的国家都有气候，唯有英国才有天气。
Therefore, we alone must make something of ourselves, transforming ourselves into the instruments for experiencing the deepest spiritual essence of life.
因此，我们必须有所作为，那样可以引导我们去体会生活中最深层的精神实质。
We are able to ask the question "are we alone in the universe?" because our ancestors created memes, turning Earth into a "two replicator", or R2, planet, rich in language and culture.
我们能够问出“我们在宇宙中是孤家寡人吗？”这样的问题，是因为祖先创造了各种模因，使地球成为一个有着丰富的语言和文化的“双复制因子”(或称r2)星球。
我们在宇宙间是孤居的？
我们真是唯一的吗？
We alone decide how to make the best use of the here and now.
我们自己要决定如何最好地利用此时此地。
Vasopressin, an antidiuretic hormone, is another chemical that has been associated with the formation of long-term, monogamous relationships (see "Are We Alone in Love?").
垂体后叶加压素，一种抗利尿激素，又是一种与一夫一妻制的长久关系形成有关的化学物质（见“钟情者只有我们吗？”）
Vasopressin, an antidiuretic hormone, is another chemical that has been associated with the formation of long-term, monogamous relationships (see "Are We Alone in Love?").
垂体后叶加压素，一种抗利尿激素，又是一种与一夫一妻制的长久关系形成有关的化学物质（见“钟情者只有我们吗？”）
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