​Every now and then, you’ll come across someone who is struggling while trying to solve a problem that you already know how to solve. The temptation is to offer this person advice and thus put an end to his or her struggle—after all, offering a helping hand seems like the right thing to do. Well, my experience has taught me time and again that such unsolicited advice is usually not welcome. The old adage about giving advice is true: “Fools won’t heed it and wise people don’t need it”—and both will resent you for offering it! The fool will resent you because he or she already thinks they know everything. The wise person will resent it because your advice will deprive him or her of a first-hand learning experience. So, the next time you’re tempted to dole out free advice, ask yourself the question, “Did this person ask for my help?” If the answer is no, do yourself and the other person a big favor and mind your own business.