There is a truth in Schopenhauer’s view that philosophy is an organism, and that a book on philosophy, with a beginning and end, is a sort of contradiction. ... In philosophy matters are not simple enough for us to say ‘Let’s get a rough idea’, for we do not know the country except by knowing the connections between the roads.
L. Wittgenstein, Lecture, 1933

What I should like to get you to do is not to agree with me in particular opinions but to investigate the matter in the right way. To notice the interesting kind of things (i.e. the things which will serve as keys if you use them properly).
Pocket Notebook MS 155