Bestselling management author and CNBC contributor Suzy Welch is often asked, "What's the number one thing parents can do to help their kids achieve career success?"
"That's a tough question," the mom of four millennials tells CNBC Make It. "And I can really only answer with what worked for me."
She says that like most kids, hers would sometimes "whine about the unfairness of life, or how hard it was to make new friends at school or how much extra work it took to get an A instead of a B or a C."
Like many parents, she'd respond with lectures about hard work, discipline and perseverance. But Welch's lectures were always punctuated by a simple message that she says is key to helping kids understand the relationship between putting in extra effort and achieving your goals: "Everything good is hard."