 During this time, he also gave advice to Sun Quan's first heir apparent, Sun Deng, and spoke up for officials affected by Lü Yi's abuses of power.In 246, he became the fourth Imperial Chancellor of Wu, but died in office in the following year.Bu Zhi was known for being magnanimous, generous and capable of putting up with indignities – these traits earned him much respect from many people, including his enemies.