MIT OCW contains quite a few true gems. These lectures will still be worth watching 100 years from now. - Differential Equations from 2015: https://ocw.mit.edu

MIT OCW contains quite a few true gems. These lectures will still be worth watching 100 years from now. - Differential Equations from 2015: https://ocw.mit.edu/resources/res-18-009-learn-differential-equations-up-close-with-gilbert-strang-and-cleve-moler-fall-2015/ https://ocw.mit.edu/resources/res-18-009-learn-differential-... - The original SICP recordings from 1986: https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-001-structure-and-interpretation-of-computer-programs-spring-2005/video-lectures/ https://ocw.mit.edu/courses/electrical-engineering-and-compu...