This is getting away from the original question which is "Philosophy is useful". Adding that it is not useful for itself gets away from the point.
david_treblig
Philosophical thought has existed since the dawn of mankind. Philosophy as we know it started centuries before the common era and we still wonder what love is.
This is unrelated to the question. Furthermore, critical thinking is one of the studies contained in the greater term "Philosophy" which makes this statement useless.
david_treblig
Philosophy isn't really useful, as most of the questions philosophy tries to answer aren't relevant to everyday life. Even so, on any given question, there are reasons to believe and not to believe in it, as evident on this discussion board.