This booklet is a concise collection of topics included in five seminars entitled Ethics and economics held by Mr Giuseppe Robiati over twenty five years, as part of my statistics course at the faculty of Economics, University of Bari. Mr Robiati, a member of the European Bahá'í Business Forum, has always managed to efficiently combine the ethical principles inspired by his Faith and those derived from Economics in his entrepreneurial activities. Thanks to this effective synergy his lectures have had enormous success among students, and my intention to focus on ethical values as part of the education of the youth has been outstandingly implemented by him. At the end of my fifty-year teaching career at university I wish to express my gratitude for bringing such enhancement to my lectures. Re-evaluating development and growth in terms of responsibility: this is the new frontier economists and world leaders are called to explore, to ensure a sustainable future for planet Earth and its inhabitants.