The idea of the hierarchy of the sciences has a strong tradition especially in the sociology of science. It is shown that organisations of sciences according to various criteria are very similar: “hard”, exact and theoretical disciplines are always placed at one end of the continuum, and “soft”, social or applied sciences at the other end. The aim of this study is to find connections between a position of a science at the hierarchy and personality traits of its representatives. The research sample consists of 132 experts from Palacký University in Olomouc who have been administrated three personality inventories (NEO-FFI, PSSI, SSI). The results suggest that representatives of the “soft sciences” incline to extraversion, openness to experience, and emotional expressivity more than representatives of the exact disciplines. “Soft sciences” experts also score relatively high on the PSSI-scale ambitious/nar­cissistic and endearing/his­trionic style, and low on the PSSI-scale reserved/schizoid style. Research findings are interpreted in the context of Baron-Cohen E-S theory and the psychology of science.