Surah 52. At-Tur, Ayah 32

The meaning is: Have they any reasoned objection to the contents of this message - or do they simply reject the truth because their false pride in man's supposed "self-sufficiency" (cf. {96:6-7}) prevents them from accepting the notion of responsibility before a Supreme Being?

 The pagan leaders claimed to be Mecca’s most intelligent minds. So this verse questions their intelligence, arguing that the Prophet (ﷺ) cannot be a madman and a poet at the same time.

It may be that the persecutors of Truth are ignorant, and their deficient faculties of understanding mislead them, but it is more often the case that they are perverse rebels against the law of Allah, defending their own selfish interests, and preventing those whom they oppress, from getting justice.

Cf. li. 53.