Science is feasible when the variables are few and can be enumerated; when their combinations are distinct and clear. We are tending toward the condition of science and aspiring to do it. The artist works out his own formulas; the interest of science lies in the art of making science.
When you see in places like Africa and parts of Asia abject poverty, hungry children and malnutrition around you, and you look at yourself as being people who have well being and comforts, I think it takes a very insensitive, tough person not to feel they need to do something.