Empiricism in a nutshell

Langhansen, Christoph, theologian and mathematician (1691-1770). Autograph quotation signed.

€ 800.00

"Panta dokimazete, to kalon katechete" ("Test everything. Hold on to the good", 1 Thessalonians 5:21).

Christoph Langhansen was professor of mathematics and theology in Königsberg, several times president of the university and author of numerous mathematical and astronomical writings.

With small handwritten numbering in the upper right corner.