Rousseau is generally associated with the eighteenth century French philosophes in what Peter Gay called “The Party of Humanity.”While it is true that Rousseau shared many of the progressive political
and philosophical ideas of that group of enlightened figures, he parted company with them on basic issues of theology and
This is apparent in the reading of Rousseau's published works - where his religious instincts especially, separate him from
the radical wing of the French Enlightenment. There is an enormous distance between his “Profession du vicaire savoyard”and
Diderot's Penses philosophiques.
It is in his great correspondence, however, that one may see just how Rousseau differed from his colleagues in the struggle
against religious and political obscurantism. In his letters he discourses brilliantly on basic metaphysical questions and
proposes intuition over reason as a more serious intellectual modality. Beyond even those philosophes such as Voltaire, who embraced a kind of vapid deism, Rousseau uses his correspondence to endorse a mystical conception of
the universe in which emotion, imagination and feeling are inextricably bound up.
In his survey of contemporary philosophical ideas Rousseau expresses as much scorn for intolerant religious dogma as he does
for the extreme expressions of atheism. There are many letters in which he argues against the materialist interpretation of
matter and demands of the atheist school convincing intellectual proofs for their theses.
In the correspondence Rousseau has a great deal to say about his own conception of God, immortality and the soul. His eschatology
is, of course, different from the conventional Christian one; he cannot or will not accept the idea of eternal damnation.
In his discussion of religion in the letters Rousseau ranges far and wide; he considers, interalia, extra terrestrial life, the idea of free will, the purpose of rapture and theodicy.
In this last arena, where a just God is seen to permit evil in the world, Rousseau waxes eloquent in trying to solve this
age-old theological quandary. He does so by exploring definitions of the word evil and emphasizing the orderly nature of the
universe. In this context, Rousseau, a master of the religious dialectic, reduces the problem of evil and death through an
astute linguistic approach.
Rousseau's final plea, as extracted from his correspondence, is that human beings must recognize the limits of reason as an
instrument capable of solving all the metaphysical problems.