The virtue of rationality requires the consistent application of one's mind to all areas of one's life. The rational egoist works constantly to eliminate his or her "blind spots" and regards no area as closed to inquiry in principle. While an egoist may not regard abstract intellectual minutiae as having great importance, particularly when they are arise from false premises or fail to relate to reality, he or she strives to attain a full understanding of all concepts and principles that may significantly affect his or her existence in the real world.
The application of one's mind to reality, as we saw in Section 1, encompasses more than a facility in chaining syllogisms together. It also involves elements such as careful observation, acceptance of new experiences, evaluation of new points of view, and in general inductive inferences from all of one's sensory data. It may even include intuitions and creative hunches, although these must ultimately be supported by objective, logical investigation.     

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