Principles of professionalism have their foundations in concepts related to power, trust, respect, responsibility, freedom, and justice. These are topics that are typically not directly addressed in day-to-day workplace communications or in classrooms, but they are essential in providing a safe, inclusive and productive work environment. These principles ultimately impact the quality of our Science, and the well-being of scientists. This section provides background information on underlying principles that contribute to “workplace climate”: trust, responsibility, respect, freedom and justice. Resources and readings from this section provide rich materials for group discussion and personal reflection.