" Seibel: I was looking at one of your papers from the 70s about your Fortran profiler. In the preamble you were very enthusiastic about how that tool changed your programming from figuring out what you were going to write, writing it, and debugging it, to figuring out what you were going to write, writing a really simple version, profiling it, then optimizing it. "

― , Coders at Work: Reflections on the Craft of Programming