As Yuan brothers, why did Yuan Shu look down on Yuan Shao until his death?

Yuan Jia IV Sangong was a noble family at that time. Yuan Shu and Yuan Shao are fighting for the position of emperor. But the two did not give way to each other, and they beat each other to death. And Yuan Shu looked down on his brother Yuan Shao to death. What are the conditions?

Yuan Shu and Yuan Shao are half brothers, Yuan Shu is the second son of the first family, and Yuan Shao is the eldest son. Yuan Shao's biological mother is just a low-level handmaid and concubine. We know that in ancient times, the difference between ordinary and ordinary was so obvious. The original birth problem doomed them to be different from each other. Yuan Shu didn't regard Yuan Shao from humble origins as his own brother from the beginning.

Different backgrounds, two people have different natures and personalities. Yuan Shu is a man with considerable ambition and drive. Just act decisively and make a decision. But impulsive, arrogant and reckless. Yuan Shao is easy to hesitate, but tolerant and kind.

People with different courses cannot make plans for each other. Of course, it is difficult for these two people with diametrically opposite personalities to live in peace. And it is precisely because of Yuan Shu's character that he has no big pattern in his heart, and naturally he can't stand Lombardi's procrastination and indecision.

But later, through his own efforts, Yuan Shao made friends with heroes and warriors from all over the country, and gradually came from behind in Yuan Jia's prestige, surpassing Yuan Shu. Yuan Shu, on the other hand, was gradually unpopular with local officials because of his noble birth, high profile and arrogance. This is undoubtedly a great humiliation and blow to Yuan Shu. How can he stand Yuan Shao, who was born in humble origins, overtaking in the corner and replacing himself as the spokesman of Yuan Shi?

Therefore, these two people can't be brothers who are in harmony and blind date, but they can only be tit-for-tat for life.