48.忘我主义的例子俯拾皆是,广泛存在于人类和其它哺乳动物群体中。
Examples of altruism abound, both among humans and among other mammals.
49.人类中的无私行为涵盖了从与陌生人分享食物到为家庭成员,甚至是为陌生人捐献器官的各种作法。
Unselfish acts among humans range from the sharing of food with strangers to the donation of body organs to family members and even to strangers.
50.此类行为之所以是无私忘我的是因为它们有利于他人,而对行使这些行为的个体却几乎没有提供任何的回报。
These acts are altruistic in that they benefit others, yet provide little reward to the individuals performing them.
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