“I have a daughter who just started a business this year,” the billionaire philanthropist and ex-wife of Bill Gates, recently explained at the Power of Women’s Sports Summit presented by e.l.f. Beauty. “She got capitalized, not because of my contacts, not because of me. I wouldn’t put money into it.”

Her reasoning? If this is a “real business”, she said, then others need to be willing to back it. And more importantly, her daughter should learn how to navigate the sting of rejection if it doesn’t get that funding. “That’s what I told her,” French Gates added. “She’s growing from this.”

It’s a stance that echoes her and Bill Gates’ long-standing approach to wealth. The Microsoft co-founder previously revealed their children would inherit “less than 1%” of his fortune when he eventually passes away—insisting they make their own way in the world.

And while the 60-year-old mother didn’t reveal which daughter she was referring to, their youngest, Phoebe, recently launched a fashion-tech startup, Phia, with her Stanford roommate, Sophia Kianni.

The platform compares clothing prices over 40,000 sites to help users find the best deals—and back in April, the 22-year-old “nepo baby” revealed that her parents wouldn’t let her drop out of the prestigious university to launch a startup, like her dad did.

The importance of failing for female founders

For French Gates, insisting her daughter forge her own fundraising path isn’t about just tough love or even self-sufficiency—it’s about helping her develop grit and the ability to weather rejection in an unequal system.

After all, the philanthropist said that it’s the one common thread connecting the successful women who appear on her YouTube series, Moments That Make Us.  

“I saw that going through something difficult changed all of them, and that they had to learn to find resilience somewhere,” she said. “And in finding that resilience, they found themselves.”

Still today, French Gates—who has spent over two decades advocating for women’s empowerment—says female founders have to develop sharper elbows than their male counterparts if they want to survive the startup world. 

“It is very, very hard to get your business funded if you’re a woman,” she said. “And so you do have to learn a bit how to have the courage to play the game and to stick with it.” 

Tennis legend Billie Jean King, who was on stage alongside her, agreed—and praised the growth that comes from setbacks. 

“To your point, like your daughter has figured out how to get this first business started—that’s amazing. “I don’t think it’ll ever fail, she’ll get feedback from every situation.”

In fact, King says she’s banned the word failure altogether from her lingo—and discourages those working around her from using it either. “When people start thinking about failure, it’s a very negative feeling,” she exclusively told Fortune. “Turn it inside out by asking yourself, what’s the feedback I’m getting from this?”

With just 2.3% of global venture capital going to female-founding teams last year, they’re not wrong: The few female founders who do finally break through will have turned failure into fuel.