Once Hazrat Moulana Ashraf Ali Thanwi (rahmatullahi ‘alaihi) mentioned:
A complete and perfect person is one who is soaked in ‘Ilm and conducts himself with adab (etiquette). Our pious predecessors were a combination of both. (Malfoozaat Hakeemul Ummat 10/ 49)
Source: Ihyaauddeen.co.za