I had come across this old lecture from Richard Hamming before but never watched it. But I had multiple people recommending it on Xitter in just the last day, including Paul Graham. Thorsten Ball (of Amp Code) recommended it in his excellent Joy & Curiosity newsletter today, and I had to watch it.
What an excellent talk covering such a wide array of topics, but all towards an exhortation for how to be great. I watched the entire thing at 1x speed. Yes, it's that good!