Tanya Chapter 32 part 3

The mitzvah of love applies to each and every Jewish person -- from great to small. But is this so? Isn't there a Talmudic statement urging us to hate certain fellow Jews? Examining the statement, we come to realize that there is a specific set of very narrow criteria to be met in which one would be qualified to be hated. But everyone else -- no matter how small, no matter how low, must be loved. And what about the person who must be hated? He too, must be loved.