Knowledge Increases Humbleness
Many people take pride in their knowledge and skills, and consider themselves superior than others on account of the same. This act is despised by Allah (SWT) and condemned in His book, the Holy Quran.
Bal'am Ba'oor was a great scholar and a virtuous person of remarkable personality in the days of Prophet Musa (as). He was such a learned man that at one time he had 12,000 students benefiting from his knowledge. He had also written a book on 'Oneness of God'. But what happened? He became proud and boastful of his knowledge and thought that he had acquired greatness purely on account of his knowledge. As a result, Allah (SWT) has cursed him in the Holy Quran. "And relate to them an account of him to whom We gave Our signs, but he cast them off. Thereupon Satan pursued him and he became one of the perverse. Had he wished, We would have surely raised him by their means, but he clung to the earth and followed his (base) desires. So his parable is that of a dog; if you make for it, it lolls out its tongue, and if you let it alone, it lolls out its tongue. Such is the parable of the people who deny Our signs. So recount these narratives, so that they may reflect. Evil is the parable of the people who deny Our signs and wrong themselves". (7:175-177) (Aadaabi az Quran)
Knowledge is like a fruit. When a fruit grows on a branch of a tree, its weight causes that branch to bend and bow. Similarly, when knowledge increases in a person, it causes him to become humble and not Mutakabbir (proud & boastful).