Everyone has the ability for critical thinking (even, no I better skip that part), but in some it is not put to actual use, they are kind of latent thinkers.

(the 'everybody is/has...but doesn't realise/admit' clause is a prime example how to make an assertion that cannot be refuted by anything/anyone)

Anyone likes Bush, even Bobert, though in him this tendency is a bit more latent than in others and he doesn't like to admit it.

Wolfgang