Logic takes care of itself; all we have to do is to look and see how it does it.
Source: Notebooks 1914 --1916, entry for 13 Oct. 1914. (ed. by Anscombe, 1961; also in Tractatus Logico-Philosophicus, sct. 5:473, 1921, tr. 1922).
-- Ludwig Wittgenstein, (Apr 26 1889-1951), Austrian-English philosopher; He was one of the most influential figures in British philosophy; produced two original and influential systems of philosophical thought.