The very essence of humanity’s psyche is tinged with a spot of darkness. It is evident in every society throughout history and of its chaotic expression be it in war, bigotry, animal cruelty, or the mere willingness to overlook acts of evil being committed, be it on an individual level or en masse, without the will to do anything to counter it.
Any body of knowledge that holds that humanity is, in essence, pure and noble is a dangerous & deadly half-truth as it would make one put their guard down. To believe in the opposite is just as dangerous as it leads to being overly cynical and distrusting of everyone regardless of their intentions or actions.
Humanity bears both the seeds of good & evil. When given the right soil (environment) and water (nurture), the corresponding seed will take root and grow. There are no exceptions to this and our acknowledgement of this phenomenon within ourselves and those around us will undeniably empower one to be more discerning on how to navigate the terrain in dealing with others as well as oneself.
In this discernment lies wisdom.