There appear to some similarities between what Wittgenstein taught or grappled with and some teachings of Buddhism, particularly Zen, namely: the notion that much in philosophy amounts to entanglements of language (not just problems of phrasing, but of language's limits), a belief that the real roots of philosophy and ethics are beyond words, that we can not even be certain of fundamental sensation yet truth is easily demonstrated in everday action, etc. Nonetheless, I have read some philosophers say that this connection is superficial. Are there serious attempts, and by whom, to draw connections between the two?