Einleitung zu der Vernunfft-Lehre, Worinnen durch eine leichte und allen vernunfftigen Menschen (+) Aussubung der Vernunfft-Lehre.

"Written by and large in German with a minimum of technical terminology, these books were intended not for an audience of experts, but instead, as the subtitle to the 'Introduction to the Doctrine of Reason' specifies, for a general audience of “all rational persons of whatever social standing and sex” (SEP)

Christian Thomasius (1655–1728) was a German philosopher and jurist often regarded as one of the most important figures of the early German Enlightenment. Thomasius played a significant role in advocating for a separation between theology and law arguing that legal matters should be based on reason rather than religious doctrine. He taught at the University of Leipzig and later at the University of Halle, where he became the first professor of natural law and the rector of the university.