形形色色的模因为自身的生存而激烈的斗争，只有那些适应自己的生存坏境，在保真度，多产性，长寿性三方面表现值均比较高的模因才有可能获胜。

Vast and various memes compete for survival in their living environment, and only those which have higher value in fidelity, fecundity and longevity have the chance to win out.

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一方面为他们的长寿而高兴，一方面又为他们的日渐衰老而恐惧。

On one hand, he is pleased with their long life. On the other, he is worried about their aging.

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