90年代中期，艾滋病不仅仅只是富国疾病的观念越显清晰明了，这激起了利他主义的产生。
The altruism was aroused as it became clear by the mid-1990s that AIDS was not just a rich-world disease.
不过，我这不仅仅是一种利他行为。
人性不仅有自私的一面，还有利他的一面。
Human nature not only on the bright side, there is also a selfish altruistic side.
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