I’m going to speak today about the relationship between science and human values. Now, it’s generally understood that questions of morality – questions of good and evil and right and wrong – are questions about which science officially has no opinion. It’s thought that science can help us get what we value, but it can never tell us what we ought to value. And, consequently, most people – I think most people probably here – think that science will never answer the most important questions in human life: questions like, “What is worth living for?” “What is worth dying for?” “What constitutes a good life?”

https://www.ted.com/talks/sam_harris_science_can_answer_moral_questions