khanacademy

“You are as good as anyone in this town, but you are no better than any of them,” says retired @NASA_Langley mathematician Katherine Johnson, who celebrates her 100th birthday today. Discover other life lessons from this trailblazer: https://t.co/FliCMfFYDt #Happy100Katherine pic.twitter.com/s0KIhj704W

— NASA (@NASA) August 26, 2018