As Poor Richard says............

"And now to conclude, 'Experience keeps a dear school, but fools will learn in no other,' as Poor Richard says, and scarce in that;  for it is true, 'We may give advice, but we cannot give conduct.'  However, remember this, 'They that will not be counselled, cannot be helped;' and farther, that 'If you will not hear Reason, she will surely rap your knuckles,' as Poor Richard says."  Thus the old gentleman ended his harangue.  The people heard it, and approved the doctrine, and immediately practiced the contrary, just as if it had been a common sermon . . .

-Benjamin Franklin,  The Way To Wealth