Pelechano considers that from the etymology of the word «personality» it can be deduced that one referred to «person» to express some extrinsic aspect of the human being: false appearances which concealed the reality of the human being. From these premises he concluded that human life could be compared to a theater play, and the human being could be perceived as an actor of the theater of life; his acting would correspond to his personality.
Pelechano considera que de la etimología de la palabra personalidad se deduce que se hablaba de persona para referirse a algo extrínseco al ser humano, a la falsa apariencia que escondía la realidad de lo que el ser humano era; de aquí él concluye que se puede comparar a la vida humana con una obra de teatro y entender al ser humano como un actor del teatro de la vida, cuya actuación correspondería a su personalidad.