John Henry, the investigator of the University of Edimburg, and Jorge Antonio Mejía, the professor of the Institute of Philosophy of the University of Antioquia, talk about a transcendent and universal concept: science. We can look at science through its encyclopedic definition or from its methodical sense. Every human being approaches reality in different ways and perceives life in different ways. Studying and learning this reality is one the purposes of science. Ideally science leads us to the knowledge of truth.