"I find him interesting, especially when played by Yvonne Loriod. The works of his I've heard often start magnificantly, but their initial promise is never realized, and you get these sugar-water climaxes that I can't stand. Splendid ideas, then suddenly Gershwin, cloying sweetness! Having said that, I like Gershwin a lot. He's excellent in his own field, and less sentimental than Messiaen."
January 1, 1970
https://en.wikiquote.org/wiki/Olivier_Messiaen