Indeed, always an independent thinker committed to radical democratic politics, Marcuse's later years saw him become increasingly outspoken and inclined to act toward the world. By the late 1960s, he was acknowledged, along with Jean-Paul Sartre, as not only a major intellectual inspiration for but also an actual partner in student-led rebellions worldwide. This old German philosopher with a talent for very complicated thoughts was certainly, as Fortune dubbed him, a terribly improbable guru.