I recommend reading this book to get an idea of ​​onfrayenne humbug. In order to assess the content of this book at fair value, it should however read the ejaculations of hedonistic Caen.
Anyway, if you really enjoy philosophy as a means to attain wisdom, do not waste your time with Onfray and rush in to read Aristotle, Plato, Descartes, Spinoza, Leibniz, Rousseau, Hume, Kant, Nietzsche ! These readings will benefit you more.