Liberals and conservatives never know anything because they have nothing to build toward

Yes, and it always reminds me of this Walter Rodney quote:

And this was the problem: that bourgeois thought — and indeed socialist thought, when we get down to it — can have a variety of developments or roads and aspects or paths. Bourgeois thought, because of its whimsical nature and because of the way in which it promotes eccentrics, can have any road. Because, after all, when you are not going any place, you can choose any road!