Mahabharat
आत्मनिन्दात्मपूजा च परनिन्दा परस्तवः अनाचरितम आर्याणां वृत्तम एतच चतुर्विधम ॥ २-४१-१५ ॥
'There are four types of conduct that are not practiced by the noble: self-deprecation, self-aggrandizement, disparagement of others, and excessive praise of others.' ॥ 2-41-15 ॥
english translation
AtmanindAtmapUjA ca paranindA parastavaH anAcaritama AryANAM vRttama etaca caturvidhama ॥ 2-41-15 ॥
hk transliteration by Sanscript