In 1989, he wrote "Has Socialism Failed?" which acknowledged the weaknesses of the socialist movement and the excesses of "Stalinism, while at the same time rejecting attempts by the left to distance themselves from socialism.
Ngo-1989, wabhala ukuthi "Ngabe I-Socialism Ihlulekile?" evume ubuthakathaka benhlangano yezenhlalo kanye nokweqisa kweStalinism, kuyilapho ngasikhathi sinye izama ngakwesobunxele ukuziqhelelanisa nobusoshiyali.