A leader finds out where people want to go, then hustles around in front of them. If you think training is expensive try ignorance. A yawn is at least an opinion. A lecture is a method for transferring information from the notes of the instructor to the notes of the learner, without passing through the minds of either. If at first you don't succeed, you're running about average.
Education is what survives when what has been learned has been forgotten.
The chief enemy of good is better. The best way to be boring is to leave nothing out. Getting people to like you is merely the other side of liking them. Experience doesn't allow dropouts. Bring your own container.