"It is easy to have an ethics that, instead of questioning things that are difficult to change, decides to call them "good". My ethics, I want to consider it built on real things; happiness and suffering are for me real things, like water or stones, even if current physics does not know them. I cannot then, by convention, baptize anything "good". And also, this implies living in uncertainty, in ethical insecurity. Is it good to kill a snake, to save a large number of frogs? While these eat so many insects? They eat each other or harm plants. I don't know if they suffer, the plants, if they hurt when they choke on each other, poison themselves, get sick shade each other. In many cases, I do not know what is right. Or, what is right is too hard to assume: with each step I risk crushing ants. Maybe I should delete myself, to save ants? I will not do it."