Here, I suggest science abandon the illusion of objective rationality. Rationality has long been deemed virtuous, and in the same breath associated with masculinity. When men are assumed rational and women irrational, it becomes all too easy to confirm your beliefs (itself an example of motivated cognition). This led to millennia of exclusionary practices in academia an the basis of sex. In line with mounting psychological evidence that all human cognition is biased by various psychological mechanisms, I suggest scientists strive to be conscious of the motivations of their own cognition rather than assume a rationality that cannot exist.