What one generation finds ridiculous, the next accepts; and the third shudders when it looks back on what the first did.

What one generation finds ridiculous, the next accepts; and the third shudders when it looks back on what the first did.

一代人觉得可笑的事，下一代人会接受;当第三个人回想起第一个人所做的事情时，不禁打了个寒颤。

-- Peter Albert David Singer 彼得·艾伯特·大卫·辛格