Huston Smith Quotes
I would not say that ethical behavior is not possible for the atheist or agnostic. It is. A couple of pretty good examples are Bertrand Russell and Jean-Paul Sartre. However, I will have to say that if we take the human lot as a whole, these two men must be seen as exceptions.
Smith, Huston. Why Religion Matters: The Fate of the Human Spirit in an Age of Disbelief. HarperCollins, 2001.
Huston Cummings Smith was a leading scholar of religious studies in the United States. He was widely regarded as one of the world's most influential figures in religious studies. He authored at least thirteen books on world's religions and philosophy, and his book The World's Religions (originally titled The Religions of Man) sold over three million copies as of 2017 and remains a popular introduction to comparative religion.