Culturally we are obliged to have desires consistent, explainable, reasonable. As it is impossible to create coherent explanations but full of falsehoods.
We are obliged to lie because if we tell the truth we become a danger to society.
Our mind is a body part that secretes ideas become stories.
Our body is part of nature and responds to its laws.
One of the natural laws of our species is to get together, not isolate, form communities. For this to happen we have the herd instinct.
In order to reconcile the different interests create a culture, that is, a general code of behavior. In more detail, within this culture have inflexible rules whose violation we will bring punishment.
In very private areas, each may have certain freedoms to meet their personal tastes can have sexual life or not, we can feed with vegetables or not, we play sports or not, and so on.
In short, we are conditioned by the laws of nature in that they can not fly, we need oxygen to breathe, sometimes we have to sleep, eat, evacuate digestive waste, we need to be loved and protected during the first years of life, and so style.
By way of a second list of commands, we must meet certain standards imposed by local authorities and must also meet certain customs and traditions that do not have difficulties with others. Extravagance is deprecated and is manifested by the abandonment, criticism and other forms of indifference.
As I say in the first paragraph, we are obliged to lie because our desires are inconsistent, often contradictory, capricious, inexplicable, but the house rules prohibit us from behaviors that can not be explained reasonably, so most of these explanations are false.
Note: Original in Spanish (without translation by Google): La inevitable necesidad de mentirl.
(Este es el Artículo Nº 1.988)