Tā kuángwàngzìdà, gēnběn tīng bù jìn biérén de yìjiàn.
He is so arrogant and conceited that he simply cannot take others' opinions.
Tips
memory
狂 (wild/frantic) + 妄 (reckless/unfounded) + 自 (self) + 大 (great/big) = wildly and recklessly thinking of oneself as great. Each character piles on another layer of overblown self-importance.