One can state, without exaggeration, that the observation of and the search for similarities and differences are the basis of all human knowledge.

They are differences but there are a lot of similarities.

There are a lot of similarities. But a lot of differences, too.

A recluse without books and ink is already in life a dead man.

They certainly have more similarities than differences.

The girl clones at Singer Grove were just like the ones in Texas; they knocked themselves out to be like everyone else and then bragged about how they were different. All their differences put into a pot and boiled down wouldn't spice baby food. By trying to brag about how different they were, they just really showed how alike they were, because all their differences were alike.