This paper is intended as an introduction and a call for questioning psychological sciences. Western sciences, especially sciences that focuses on racial and gender “differences,” have served among the most colonizing influences worldwide. Frantz Fanon’s (1959) term “shameful sciences!” especially applies to social Darwinism and eugenics as forms of scientific racism, scientific sexism, and scientific imperialism. In this contribution, I highlight my struggles as a scholar to recognize these scientific narratives, to decolonize my own praxis as a scholar and a psychology clinician, as well as to address the long standing impact of these ideologies in the academy and society. I argue that In Science We (Should Never) Blindly Trust, and share my suggestions for ways to learn, name, and resist racist and sexist ideological sciences.