"[Philosophers] are not honest enough in their work, although they make a lot of virtuous noise when the problem of truthfulness is touched even remotely. They all pose as if they had discovered and reached their real opinions through the self-development of a cold, pure, divinely unconcerned dialectic...; while at bottom it is an assumption, a hunch, indeed a kind of “inspiration”—most often a desire of the heart that has been filtered and made abstract—that they defend with reasons they have sought after the fact."
January 1, 1970
https://en.wikiquote.org/wiki/Philosophy