Those who are the hardest to love need it the most.

"There is always something left to love. And if you ain't learned that, you ain't learned nothing... Child, when do you think is the time to love somebody the most? When they done good and made things easy for everybody? Well then, you ain't through learning-- because that ain't the time at all. It's when he's at his lowest and can't believe in hisself 'cause the world done whipped him so! When you starts measuring somebody, measure him right, child, measure him right. Make sure you done taken into account what hills and valleys he come through before he got to wherever he is."
A Raisin in the Sun, Lorraine Hansberry