Tea in angel's cup different — though in essence it's the same

Wiktionary Word definitions in Wiktionary
prov. 1 (context literally English) The more it changes, the more it's the same thing (sometimes loosely translated as the more things change, the more they stay the same). 2 Although the outward appearance may change, fundamentals are constant.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1903, French, plus ça change, plus c'est la même chose (1849), literally "the more it changes, the more it stays the same."