Clear vs. Cloudy Reasoning

Imām Ibn Taimiyyah, may Allāh have mercy on him, said:

It is unimaginable that clean, clear reasoning will ever go against authentic [Islamic] texts; [it is] only that those who go against the Book, Sunnah, and consensus [of Muslim scholars], the ones who claim to have arrived at incontrovertible intellectual findings, [that] they only have with them cloudy things that look intellectually acceptable but aren’t actually [so].

Jāmiʿ Al-Masāʾil, vol. 1, p. 64.