Difference between friends and enemy

Chang-an wrote, "If one befriends another person but lacks the mercy to correct him, one is in fact his enemy." The consequences of a grave offense are extremely difficult to erase. The most important thing is to continually strengthen our wish to benefit others. 6/7

The Writings of Nichiren Daishonin
The Embankment of Faith
Written to the lay nun Sennichi on September 3, 1275