" But a water-baby is contrary to nature" .

“但是水宝宝是违背自然的”。

Purity is a negative state and therefore contrary to nature.

纯净是一种消极状态， 因此与自然相反。

You must not say that this cannot be, or that that is contrary to nature.

你不能说这不可能，或者那是违背自然的。

And therefore it is, that there are dozens and hundreds of things in the world which we should certainly have said were contrary to nature, if we did not see them going on under our eyes all day long.

因此，世界上有成百上千的事情，如果不是整天在我们眼皮底下发生，我们肯定会说是违背自然的。