Buddhism teaches that human life is endowed simultaneously with both good and evil.

Buddhism Day by Day

Wisdom for Modern Life by Daisaku Ikeda
Tuesday, August 13, 2013:

 

Buddhism teaches that human life is endowed simultaneously with both good and evil. The human mind is interpreted as partaking of ten different conditions, or states, including, at one end of the scale, hell, which is filled with suffering; hunger, dominated by greed; and animality, characterized by fear of the strong and contempt for the weak. At the other end are the Bodhisattva and Buddha conditions—states of mind in which people strive to help others by eliminating suffering and imparting happiness. Buddhism further teaches that the nature of life is for good and evil to be essentially inseparable.