pot·pour·ri
/ˌpōpəˈrē/
noun
a mixture of dried petals and spices placed in a bowl or small sack to perfume clothing or a room.
a mixture of things, especially a musical or literary medley.
Therefore, the phrase "a beautiful potpourri..." or mixture "...of differences" means that whatever this line is referring to is a pleasant mixture of many different things.
Hope this helped.
Third option, compound verb
<span>3. Ivan Ilyich wanted to put him in the School of Law, but to spite him Praskovya Fedorovna entered him at the High School.
This is the sentence from the excerpt that suggests that Ivan Ilyich and his wife couldn't even agree on how to raise their children. </span>