Thus, humans are born selfish and evil, and either learn to control their instincts through society's teaching of right and wrong or succumb to their impulses and face the consequential punishments. Thomas Hobbes' philosophy of the human condition states that humans are inherently evil. As a species we are driven to prioritize our wants and needs above the wants and needs of others to make our living experience easier and more pleasurable. This behavior is exemplified in infants, who are entirely self centered as a survival strategy. If they do not get the attention they need to survive, they will die, and because of this threat they don't take the wants and needs of others into consideration. They are narcissistic by instinct. Children demonstrate egoism perfectly, because they have to be taught goodness. If they were naturally good (which I define as an innate impulse to help mankind before yourself), feeling and expressing gratitude would come instinctively and not have to be reinforced by society.