By Verne Harnish, an EO DC member and CEO of Gazelles, Inc., an executive education firm.

Feeling a little disillusioned lately? That’s not a bad thing if you’re an entrepreneur. There’s nothing like humbling economic times to force chief executives to let go of the sacred-cow ideas and grandiose illusions they’ve been harboring and start building on reality. Some of the smartest business owners I know have fallen for these five myths. Ditch them. It will make your business that much stronger.