Years of accumulated intelligence have taught us that you cannot make an arbitrary distinction between a civilian and a military target.

The arbitrary distinctions that govern full- and part-time jobs must be eliminated.

There is often arbitrary distinction of between trade and "migration"

Of course we do accept arbitrary distinctions about some matters: zoning, for example.

The laws are also suspect because they make arbitrary distinctions that lead to inequitable results.

A useful, if somewhat arbitrary, distinction is that between an island and an islet.

But race is an arbitrary distinction based on genetic patterns.

I began to wonder: 'How have people been putting up with such arbitrary distinctions?

We just get into hand wringing about arbitrary distinctions.

The tax code is full of arbitrary distinctions between personal and business property.