This, for me, is the most relevant/significant bit for what we're discussing on this thread
"But this masks the most serious sense of the socialist use, which is the historically accurate observation that liberalism is a doctrine based on INDIVIDUALIST theories of man and society and is thus in fundamental conflict not only with SOCIALIST but with most strictly SOCIAL theories. The further observation, that liberalism is the highest form of thought developed within BOURGEOIS society and in terms of CAPITALISM, is also relevant, for when liberal is not being used as a loose swear-word, it is to this mixture of liberating and limiting ideas that it is intended to refer. Liberalism is then a doctrine of certain necessary kinds of freedom but also, and essentially, a doctrine of possessive individualism."
Nothing to do with believing/not believing in violent revolution...