On the Fourfold Root of the Principle of Suffici and On the Will in Nature
(Reklamlänk)
This treatise on Elementary Philosophy, which first appeared in the year 1813, when it procured for me the degree of doctor, afterwards became the substructure for the whole of my system. It cannot, therefore, be allowed to remain out of print, as has been the case, without my knowledge, for the las
