The aim of Twentieth century phenomenology is to provide a non-psychologistic interpretation of subjectivity. Husserl agrees with Frege; to adopt psychologism is to give up truth. But this should not prevent us from investigating the subjective perspective. On the contrary, Husserl thinks that an appropriate rejection of psychologism must be able to show how propositions are correlated to and grounded in subjective intuitions without thereby reducing them to psychological phenomena. Obviously this calls for an interpretation of subjectivity that makes a sharp distinction between the subjective perspective and the psychological realm.