[3] He received his primary education in this North Rhine-Westphalian town, studying science under a Jesuit priest at Ratheim before attending a gymnasium at his hometown.
[4] After completing his education, Esser was contracted to work as an associate professor at the University of Münster in 1823.
These are: Esser's conceptualization of the above laws was distinguished from those by Wilhelm Traugott Krug on account of the differences in their formulation.
As interpreted by Hamilton, Esser's view held that the necessity of a form of thought is contradistinguished from contingency due to its subjective nature so that a necessary form of thought is determined or necessitated by the nature of thinking itself.
[7] He then defined a universal law as that which applies to "all cases without exception, and from which a deviation is ever, and everywhere, impossible, or at least, unallowed.