This study aimed at knowing the relation between ethics and self care facing the construction of knowledge of nursing undergraduate and to identify values that conduct that construction. Data were collected through interviews and analysed under social phenomenological and the interviewee'speeches showed the following categories related to motivation for: lecture'posture in the construction of knowledge of student; project to become nurse; relationship between theory and practice; commitement with professional formation. Motivations because: construction of knowledge based on life experiences and self care supported by autonomy. Theoretial and practical knowledge of nursing undergraduate was built up through of new challenges.
Ethics; Nursing; Knowledge