The name Francisco Bulnes is associated with a strict vision in handling mathematics. His resounding thought, exposed in a vigorous style in the demonstrations, has been revolutionary in revealing that without mathematics the behavior of the world cannot be known because a great enigma prevails in the Universe, ensuring that each one of us has the obligation to see mathematics in such a beautiful way that it can lead us to a better world and a perfect order. The diversity that we find in the investigations of Dr. Bulnes is not limited to only technical questions or personal achievements; they include a huge variety of mathematical resources, structures, and emotions, among many other elements that are surprising. That is why together with each investigation we have preserved its original version and we have tried to show the genius but also the man who develops great ideas and purposes.