In order to be effective truth must penetrate like an arrow and that is likely to hurt.
It is amazing what you can accomplish if you do not care who gets the credit. If we listened to our intellect, we'd never have a love affair. We'd never have a friendship. We'd never go into business, because we'd be too cynical. Well, that's nonsense. You've got to jump off cliffs all the time and build your wings on the way down.