Yes, Immanuel Kant (1724–1804) was more intellectually influential in the nineteenth century and beyond than any other Enlightenment philosopher because he constructed a system of reason from which empiricism and the sciences could be derived. Kant thereby, theoretically, ended any residual tensions between rationalism and empiricism because his rationalism allowed for empiricism. In that sense, he was the epitome of the Age of Reason. Of course, for those who ignored Kant, the business of philosophy remained empiricism, idealism, or rationalism, as usual.