H. P. Grice: To reject or to ignore this thesis seems to me to be to go about as far as one can go in the direction of Intellectual Hara-Kiri; yet, I fear, it is a journey which lures increasingly many 'hard-headed' (even perhaps bone-headed) travellers.

 To reject or to ignore this thesis seems to me to be to go about as far as one can go in the direction of Intellectual Hara-Kiri; yet, I fear, it is a journey which lures increasingly many 'hard-headed' (even perhaps bone-headed) travellers.