Martin van den Hove

Landsberge thanked Van den Hove publicly, considered himself lucky that "by divine providence, in my old age, pressed by sickness, such a strong helper came to my aid, as formerly the learned Rheticus to the great Copernicus.

"[1] In 1632, at Copenhagen (Hafnia in Latin) and later reprinted at London in 1696, Petrus Bartholin published Apologia pro observationibus, et hypothesibus...Tycho Brahe...Contra...Martini Hortensii Delfensis criminationes et calumnies, quas in praefationem commentationum praeceptoris sui Philippi Lansbergii Middelburgensis, de motu terrae diurno et annuo etc.

cosarcinnavit ("Defense of the Astronomical Observations and Theses of Tycho Brahe against the accusations and false claims of Martinus Hortensius of Delft, which appear in his preface of the commentary by his teacher Philip van Landsberge, who wrote on the daily and annual motion of the earth").

At the encouragement of Gerard Vossius and Caspar Barlaeus, Van den Hove began lecturing on the mathematical sciences at the Amsterdam Atheneum (Athenaeum Illustre) in 1634.

Upon assuming his new duties, Van den Hove delivered an inaugural speech, later published as De dignitate et utilitate Matheseos ("On the dignity and utility of the mathematical sciences").