This project seeks to include some concepts discussed in Artificial Intelligence like Planning and NLP : "Natural Language Processing" but also matrix calculus concepts, systems based on inference rules, probabilities, graphs, heuristics. The theme of this project is that of a universe of agents, both sound (inferential capacity) and irrational (emotional influence). Two important aspects will be discussed below. The first (necessary to the second) is that of building a set of basic knowledge (in the form of a network of concepts) common to all agents. It will be build using techniques of encyclopedic / lexicographical data processing. The second will be to define a MAS: "Multi Agents System ".