有些行为甚至完全是利他的。
如果产品满足了需求，那么它就不是利他的。
猫儿不像狗或是大象那样具有利他的，移情的行为。
Cats, unlike dogs or even elephants, aren't associated with altruistic, empathic behavior.
最利他的行为，就是为他人牺牲自己，这也可以用毫无人情味的进化论来解释。
The most altruistic behavior of all, giving your life to help another, can be explained in cold-blooded evolutionary terms.
如果人们具有利他的动机，则他们有时会做有利他人的事，而不期望自己获得利益。
If people possess altruistic motives, then they sometimes act to benefit others without the prospect of gain to themselves.
我想特别讲解能让人产生善意，利他主义行为的情感。
And I want to focus particularly on emotions that generate kind or altruistic behavior.
利他：当你咳嗽或打喷嚏的时候，用一次性纸巾捂住你的口鼻，并立刻把纸巾丢进垃圾箱，然后洗手。
Be altruistic: cover your mouth and nose with a disposable tissue when you cough or sneeze, bin the tissue immediately and, yes, wash your hands.
每年的调查反馈显示，那些将利他行为和家庭目标放在优先地位的人，其生活满意度日渐上升。
People whose annual survey responses changed to place a higher priority on altruistic behaviours and family goals were rewarded with a long-term increase in life satisfaction.
又或者，同诸如写作、教书或研究之类的更具艺术性和利他性的工作相比，商业似乎令他过分地实际，以致于缺乏智识上的激励。
Or it might be that business appears to him to be toodown-to-earth to be intellectually stimulating, compared with more artistic orseemingly altruistic pursuits such as writing, teaching or research.
有机体可能是利他主 义的；基因则是自私的。
许多诊所有自己的捐助者计划，那里的妇女出于纯粹的利他主义，高兴地给予帮助。
Many clinics have their own donor egg programmes, where women are happy to help for purely altruistic reasons.
这就产生了情绪,包括被视为道德情绪的情绪，例如内疚和愤怒，再一次，这种对利他行为的解释,也是从进化论的角度出发的。
This gives rise to some emotion including emotions that could be viewed as moral emotions, like guilt and anger, and again, grounds altruistic behavior in an evolutionary perspective.
他认为，自然选择对于那些曾经是利他主义者的人是有利的，因为我们的祖先生活在小而密集的群体中，人们的利他主义可以指望得到相互间的利益互惠。
He argues that natural selection favored humans who were altruistic because in the small, close-knit groups in which our ancestors lived, altruists could expect reciprocity.
沙发冲浪者视自己为一个部落的成员；不像在酒吧里面邂逅的两个人，他们是在利他主义的前提下相遇。
Couch surfers tend to see themselves as part of a tribe; unlike two people hooking up at a bar, they meet under an altruistic premise.
进化论中有一个尚待解决的神秘现象，就是为什么生物是利他主义的。
One of the big unsolved mysteries in evolutionary theory is why creatures are altruistic.
研究人员在数类动物中发现了利他类型的特征，其中有狨、老鼠和蚂蚁。
Researchers have seen evidence of altruistic-type behavior in several species, including marmosets, rats, and even ants.
这意味着利他主义基因的存在会比自私基因更普遍。
That means that altruistic genes would be more prevalent than selfish genes.
Renegade：那么，Bruce，看起来您看到了它的某种利他部分。
Renegade: so, Bruce, it seems as though you see a sort of altruistic component to it.
无论您的意图是利他还是利己(或者两者都有)，您都应该利用那些您所在城市可用的公共交通选项。
Whether your intentions are altruistic or selfish (or both), you owe it to yourself to explore the public transit options available to you in your city.
直到最近，科学家还没有发现黑猩猩的利他行为特征，起码在圈养的黑猩猩中没有发现。
Until very recently scientists were hard put to detect altruistic behavior in chimps at least in laboratory studies of captive animals.
当我们问为什么人类会有利他主义行为时，我们想知道的是他们的动机或意图。
When we ask whether human beings are altruistic, we want to know about their motives or intentions.
我们认为，纯粹的利他主义要求一个人不计个人得失为另一个人作出牺牲。
Pure altruism, we think, requires a person to sacrifice for another without consideration of personal gain.
伯施说，利他主义行为在圈养环境下发生的并不那么频繁，因为圈养动物不需要只有抱成团才能生存下去。
Boesch says altruism may not show up as often in captivity because captive animals don't need to stick together to survive.
我们能从一群蚂蚁身上得到同样的利他主义。
在《自私的基因》这本书里，理查德·道金斯【2】写道，我们必须“试图去教导人们慷慨和利他，因为我们生来就是自私的。”
In The selfish gene, Richard Dawkins writes that we must "try to teach generosity and altruism, because we are born selfish".
由于利他主义是捐肾者唯一的动机，也就难怪没有足够多的人来捐献了。
Unsurprisingly, with altruism the only incentive, not enough people offer.
由于利他主义是捐肾者唯一的动机，也就难怪没有足够多的人来捐献了。
Unsurprisingly, with altruism the only incentive, not enough people offer.
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