a passing remark -- by all means read Wittgenstein's 'Philosophical Investigations' because it is readable as the article says. In the metaphysical world it can

a passing remark -- by all means read Wittgenstein's 'Philosophical Investigations' because it is readable as the article says. In the metaphysical world it can be hard cut through the work of its great thinkers. A sensible way to approach Wittgenstein is to start with a college level introductory book on Metaphysics to get the foundational ideas, Categories and Forms of Aristotle and Plato. Some modern philosopher writers can walk us through this nicely (Michale Loux from U of Chicago, his introductory writings or some other perhaps). What might be modern now (Trope Theory, World of States of Affairs, Stage Theory etc), their instigators first came to reject the basics of the ancients but in the end they actually dissect the work of the ancients for us. Travel to Wittgenstein along this path, read him only towards the end. One needs numbers and algebra before calculus.