I'm sitting here looking at the brown, dog-eared old McCracken Fortran IV book from my high school comp sci class (1978). What magic it was to conceive of a program, cut it onto punched cards, suck the stack through a card reader, and then see my output appear, line by line, on the dot-matrix printer. Thank you, professor, for your contribution to computer science and for inspiring me to find the work I love.