According to Buddhism, this inequality is due not only to heredity, environment, "nature and nurture", but also to Karma. In other words, it is the result of our own past actions and our own present doings. We ourselves are responsible for our own happiness and misery. We create our own Heaven. We create our own Hell. We are the architects of our own fate.
Perplexed by the seemingly inexplicable, apparent disparity that existed among humanity, a young truth-seeker approached the Buddha and questioned him regarding this intricate problem of inequality:
"What is the cause, what is the reason, O Lord," questioned he, "that we find amongst mankind the short-lived and long-lived, the healthy and the diseased, the ugly and beautiful, those lacking influence and the powerful, the poor and the rich, the low-born and the high-born, and the ignorant and the wise?"
The Buddha’s reply was:
"All living beings have actions (Karma) as their own, their inheritance, their congenital cause, their kinsman, their refuge. It is Karma that differentiates beings into low and high states."
He then explained the cause of such differences in accordance with the law of cause and effect.
Certainly we are born with hereditary characteristics. At the same time we possess certain innate abilities that science cannot adequately account for. To our parents we are indebted for the gross sperm and ovum that form the nucleus of this so-called being. They remain dormant within each parent until this potential germinal compound is vitalised by the karmic energy needed for the production of the foetus. Karma is therefore the indispensable conceptive cause of this being.
The accumulated karmic tendencies, inherited in the course of previous lives, at times play a far greater role than the hereditary parental cells and genes in the formation of both physical and mental characteristics.
The Buddha, for instance, inherited, like every other person, the reproductive cells and genes from his parents. But physically, morally and intellectually there was none comparable to him in his long line of Royal ancestors. In the Buddha’s own words, he belonged not to the Royal lineage, but to that of the Aryan Buddhas. He was certainly a superman, an extraordinary creation of his own Karma.