He said for each day that I do my task of writing, I get to put a big red X over that day. “After a few days you’ll have a chain. Just keep at it and the chain will grow longer every day. You’ll like seeing that chain, especially when you get a few weeks under your belt. Your only job next is to not break the chain.”
A computer & rocket scientist, mathematician (and one of the first black women in her field) that created software for a number of systems at NASA, including the Centaur Rocket. She helped make modern day space flight possible.