Any time anyone tells you that a dream is impossible, any time you’re discouraged by impossible challenges, just mutter this mantra: Tererai Trent.

Of all the people earning university degrees this year, perhaps the most remarkable story belongs to Tererai (pronounced TEH-reh-rye), a middle-aged woman who is one of my heroes. She is celebrating a personal triumph, but she’s also a monument to the aid organizations and individuals who helped her. When you hear that foreign-aid groups just squander money or build dependency, remember that by all odds Tererai should be an illiterate, battered cattle-herd in Zimbabwe and instead  ah, but I’m getting ahead of my story.

Tererai was born in a village in rural Zimbabwe, probably sometime in 1965, and attended elementary school for less than one year. Her father married her off when she was about 11 to a man who beat her regularly. She seemed destined to be one more squandered African asset.