Johann Heinrich Pestalozzi

He founded several educational institutions both in German- and French-speaking regions of Switzerland and wrote many works explaining his revolutionary modern principles of education. His motto was "Learning by head, hand and heart". Thanks to Pestalozzi, illiteracy in 18th-century Switzerland was overcome almost completely by 1830.

https://en.m.wikipedia.org/wiki/Johann_Heinrich_Pestalozzi

Ruedi Graf; Ruedi Graf : "Pestalozzi, Johann Heinrich", in: Historisches Lexikon der Schweiz (HLS), Version vom 15.02.2022. Online: https://hls-dhs-dss.ch/de/articles/009054/2022-02-15/, konsultiert am 07.08.2022.