https://corecursive.com/039-hal-abelson-sicp/
"If you pick up almost any computing book it starts out 'here are these datatypes, these operations that you do' and somewhere around 20 or 30% through the book, they show you how to define a function or a procedure. Whereas we really take the opposite approach. We say the key thing is abstraction. So we kind of start there."
"The axe [the book] is grinding is that people write programs to do one particular thing. And then the price of that is that a whole lot of software engineering ends up being trying to get out of the hole you dug yourself into because you made a program that was too specific."