The brain is a body with a very special task in human beings. The human brain has driven evolution in a very specific direction because it has enabled people to conceive of different future possibilities using memory. By reliving memory elements in new and different combinations, people use the brain to assess the importance of various possible features for welfare and progress. If none of the possible future is perceived as optimal, conditions and surroundings can be changed by selecting and executing future plans. The work of the brain in this process depends in particular on the quality and amount of memory elements and the ability of the consciousness to recreate them in the most advantageous combinations. A neurobiological reason for it to be possible is among other functions the very fact that people like other animal species can move and therefore always have to take a position on the content of movements (time, place, purpose and way), but for human It is the detail of memory and consciousness that has been decisive for the evolution of modern man.