... patterns? Where did Morphy, Lasker, Capablanca, or Alekhine found those patterns to memorize? Was there a Chess Informant back in the XIX Century? ...
I don’t know that it makes sense to characterize this sort of thing as memorization, but I do have some sympathy for the idea of learning patterns. By the time of Lasker, Capablanca, and Alekhine, it was possible to learn from a substantial body of literature recording previous match and tournament activity. Even Morphy was able to learn from such things as the works of Philidor, Bilguer, Staunton, etc. Of course, one would imagine that Morphy, Lasker, etc. themselves originated many patterns that have become available to subsequent generations, but perhaps all of this is of limited relevance to the focus of the concern of GoGophers. Perhaps, pattern usage, in some sense, is a major aspect of the reason that GoGophers loses games to his usual opponents. Even so, learning to use such patterns is an activity that is very different from learning to use phone numbers.
On pattern recognition, is a technique meant to speed up the learning process and not that the learning process is composed only of pattern recognition. If the student can't tell why a pattern works then he may incur into false pattern recognition... which we're a witness of every time someone sacs a piece for nothing and claims he's playing like Tal or Kasparov.
And I wasn't kidding on the unsubstantiated part.
Philidor wrote one (not plural) book with very, very few games in it. Bilguer's Handbook appeared in 1843, but Bilguer died in 1840 so he actually wrote nothing. The initial five editions (1843, 1852, 1858, 1864, and 1874) were by von der Lasa (Bilguer's friend in life), composed mostly by wrong openings analysis. Staunton had a weekly newspaper column where, sometimes, he analyzed a game. But Staunton was into closed games and Morphy had contempt for such games, so it can't be said Morphy was influenced positively by Staunton's articles, nor that Morphy saw patterns that defined his own games.
What may be said is that Morphy read the chess books and articles published in Europe, and thought something in the line of: "These guys are nuts! I'll go there ASAP, kick their butts and become the King of the World!" But... patterns? Nah.
Is Chess anything more than memorization?
There is Calculation. At least 3 ply.