A phrase coined by Charlie Papazian in The New Complete Joy of Homebrewing.
It neatly sums up how to approach home brewing as a beginner. Home brewing texts, web pages, kit instructions should all be taken with a grain of salt. Beer is tougher than you think and it's much better for you (and your [beer]) to relax and see what happens rather than go crazy trying to solve a problem that may not exist.