Dr Kumar Vishwas
What separates a human being from an animal in terms of character?
Viveka, the sense of good and bad
A porcupine raises its quills when attacked, but a human has nothing like that. What a human has is viveka (discernment), the ability to know what is good and what is bad. The day you lose this discernment you become an animal instead of a human.
What you have is the discernment of good and bad. The day you lose this discernment, you turn from human to animal.