"If you are filled with pride, then you will have no room for wisdom."~ African proverb
You can acquire more knowledge and wisdom if you are willing to admit that you don't know everything and that you are open to learning from anyone.
No one knows everything. In the words of Zen Master, Shunryu Suzuki, "In the beginner's mind, there are many possibilities, but in the expert's mind, there are few." Adopt the attitude of a beginner, not that of a know-it-all expert.