unlikeness

We were drawn to one another by the unlikeness of our quality, by the things we misunderstood in each other.

We must reason from laws of nature; from the uniformities which are observable in the fact of likeness or unlikeness.

You cannot think of unity until you have seen variety; you cannot recognise likeness until you have seen unlikeness.

Their likeness makes them congenial, and their unlikeness makes them instructive and interesting to each other.

A certain strangeness and unlikeness (such as gives poignancy to the love between the sexes) would excite a livelier affection.