Physics

Physics is like sex, you get final products[outcome?] in both but that is not why you do it.

What one fool can do, another can do better.

...I can live with doubt and uncertainty and not knowing. I think it is much more interesting to live not knowing than to have answers that might be wrong. I have approximate answers and possible beliefs and different degrees of certainty about different things, but I am not absolutely sure of anything and there are many things I do not know anything about, such as whether it means anything to ask 'why are we here?' I do not have to know an answer. I do not feel frightened by not knowing things, by being lost in a mysterious universe without any purpose, which it is as far as I can tell. It does not frighten me.