Bernard Lonergan and Alberto Guerreiro Ramos: dialogues between the existential subject and the parenthetical man

Abstract Bernard Lonergan has addressed, among other topics, the issue of human and ethical action, considering the possibility of a path of authenticity and moral achievement that occurs in a specific type of subject, whom he has called the existential subject. Based on this concept, we considered the possibility of a dialogue with Alberto Guerreiro Ramos, who has created the concept of parenthetical man, defined as a being that is rational par excellence, in his substantive dimension. The conception of this model of man goes in an opposite direction of the management theories based on instrumental rationality. Although Lonergan has not explicitly created a substantive theory, his concept of ethics and human good highlights aspects that relate to the substantive rationality. Thus, this theoretical essay aims to identify the possible connection between the parenthetical man and the existential subject, based on the perspective of human action and ethics. We identified that the authors have a similar comprehension of the world and of human relations, especially regarding the critical consciousness of the parenthetical man and the awareness of responsibility of the existential subject.