There is no equality in nature; also there is no inequality in nature.
Inequality, as much as equality, implies a standard of value.

To read aristocracy into the anarchy of animals is just as sentimental as to read democracy into it.

Both aristocracy and democracy are human ideals: the one saying that all men are valuable, the other that some men are more valuable.

But nature does not say that cats are more valuable than mice; nature makes no remark on the subject.

She does not even say that the cat is enviable or the mouse pitiable.