Comments on https://lichess.org/@/jedidiah932/blog/how-to-play-with-purpose-and-how-i-discovered-anastasias-mate/49it1Vxo
"You HAVE to make opening preparation"
* 'In order to improve your game, you must study the endgame before everything else. For whereas the endings can be studied and mastered by themselves, the middle game and opening must be studied in relation to the end game.' - Capablanca
'Ninety percent of the book variations have no great value, because either they contain mistakes or they are based on fallacious assumptions; just forget about the openings and spend all that time on the endings.' - Capablanca
I've read that quote before, and Capa just happens to be my most favorite Chess player of ALL time.