Studying the writings of Karl Marx he became a convert to an extreme revolutionary, socialistic and atheistic creed; but though he entered into correspondence with Marx, with the object of starting a revolutionary movement, he does not appear to have taken any overt part in the events of 1848-1849.
This office, however, he was soon obliged to resign, owing to his alleged atheistic tendencies, but he was subsequently nominated a member of the legislative commission.
It arises out of the combination of two principles, neither of which is atheistic taken separately, i.e.
within itself dogmatic atheism, and is probably the only coherent or reasoned type of atheistic opinion.
It was in this form that he criticized the " atheistic mesmerism " to which his sister Harriet had committed herself, and she never forgave his criticism.