Authors:

Just like when there's a time that a smart person knows enough is enough, there's a time when you know you've got to fight.

Christopher Paul Curtis, Holt Rinehart & Winston (2002). “Bud, not Buddy: with connections”, Houghton Mifflin Harcourt (HMH)
Just like when there's a time that a smart person knows enough is enough, there's a time when you know you've got to fight.