Today at the table someone said: Humans are innately good. Then from the other end: I think humans are innately evil. And finally, those in middle said: there is no such thing as good alone, or evil alone; they must exist together, otherwise, they will not exist at all. This age-long debate will go on for ages. Not because there is no certain answer, but because every person will want to believe what suits their motives best. If I am stranded all alone on planet, whose surface is an endless flat, how will I know if I am tall or if I am short?