In Walter Isaacson's biography "Benjamin Franklin: An American Life," the author discusses Franklin's belief in the importance of loving one’s enemies, as it allows individuals to gain insights into their own shortcomings. This perspective suggests that adversaries can provide valuable feedback that may be overlooked by friends or allies who tend to be more supportive and less critical. By embracing this notion, Franklin encourages people to reflect on their faults openly and use the constructive criticism from their enemies to foster personal growth. This wisdom highlights the idea that true strength lies in the capacity to learn from all relationships, even the challenging ones.

Love your enemies, for they will tell you your faults.

— Benjamin Franklin: An American Life by Walter Isaacson