Disable arrow keys in Emacs

So for this habit is ineradicable by will and my hands a little ache after hour or two of code surfing, I've decided just to disable this keys in my .emacs. Here we go:

(global-unset-key [(up)])
(global-unset-key [(down)])
(global-unset-key [(left)])
(global-unset-key [(right)])
(global-unset-key [(prior)])
(global-unset-key [(next)])
(global-unset-key [(home)])
(global-unset-key [(next)])