ABSTRACT: This article aims to show the importance of sensitivity and subjectivity as objects of study and sources for historians. Bringing the example of a learning within an individual career path, which has as an initial standard the relationship of guidance in research of post-graduation with historian Sandra Jatahy Pesavento (PPG History UFRGS), I present how the subjectivity of the historian (in its life and its work) fertilizes and gives importance to interdisciplinary relationship inside and outside of academic fields, making them critical practices of research and interpretation in Cultural History.