And to discover the intelligence of babies we have to ourselves be pretty smart in developing different techniques.
要想探究婴儿的智力，我们就必须足够聪明，发明出不同的研究技术。
Now, these — the nature of these responses, this preferring faces, this sort of mimicry, is a matter of debate, and there's a lot of research going on asking how smart are babies.
这些天生的反应，这些对面孔的偏好，这种模仿，如今仍存有争论，许多研究依然在探寻婴儿究竟有多么聪明。
1:Darwin had not considered a world where smart people have fewer babies, and dumb people have more.
达尔文没有预料到，在现在的世界里，愚蠢的人们比聪明的人们有着更多的后代。
Chinese people have traditionally believed babies born in the Year of Monkey to be smart and confident, due to their love of the animal because it is cute and resembles humans in many ways.
中国人传统上认为“猴宝宝”聪明又自信，这出自大家对猴子的喜爱。 猴子聪明伶俐，又与人类有许多相似之处。
Chinese people have traditionally believed babies born in the Year of Monkey to be smart and confident, due to their love of the animal because it is cute and resembles humans in many ways.
中国人传统上认为“猴宝宝”聪明又自信，这出自大家对猴子的喜爱。 猴子聪明伶俐，又与人类有许多相似之处。
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