One of his most recent works, Cosmopolis: The Hidden Agenda of Modernity (1990), written while Toulmin held the position of the Avalon Foundation Professor of the Humanities at Northwestern University, specifically criticizes the practical use and the thinning morality underlying modern science.
I ett av hans senare verk, Cosmopolis: The Hidden Agenda of Modernity (1990), som tillkom under tiden Toulmin hade Avalon Foundations professur i humaniora vid Northwestern University, kritiserar Toulmin särskilt den praktiska betydelsen av och urvattnade moralen som genomsyrar den moderna vetenskapen.