Self-contradictory definition

It is a common opinion in Germany that our material is in fact too scanty or too self-contradictory.

But this is a notion which is self-contradictory if consciousness be essentially a relating activity.

It is a self-contradictory history of the relations between Mary and Darnley.

A thing-in-itself which is not a thing to some consciousness is an entirely unrealizable, because self-contradictory, conception.