At 91 years old, Gustavo Bueno is a living example of the philosopher, in the sense that Plato gave to this activity in his myth of the cave 2,500 years ago: in our complex world saturated with information, objects and ideas that often stun us, philosophical criticism allows us to reinterpret the appearances and shadows to which we are chained. The role of the philosopher is to constantly return to the cave to undo its shadows, as Gustavo Bueno literally did when he went down into the mines in the 70s or when he went to television sets to debate about "Gran Hermano".