I

And it was, of course, connected with the very nature of the investigation.
For it compels us to travel criss-cross in every direction
over a wide field of thought.[1]

[1] Ludwig Wittgenstein, Philosophical Investigations, trans. G.E.M. Anscombe (Oxford: Basil Blackwell, 1953, 1958 (1972)), preface, p. 3.