mr_gay_sex_fan posted:

Because the implication is that the thinking self just rationalizes decisions and motivations made at a deeper level. The mind lies to itself to make it all the more easier for us to conceal our motives from others. Like the straight guy who convinces himself he really prefers having girls as friends over dudes but really what's going is that his deeper primitive mind is just having him carry out a strategy of hanging around females so he can increase his mating opportunities.