Simple question, not so simple answer: Good is something that will promote a value, and a value is something that advances a life. For human beings good comes from the value of being thoughtful, rational, heedful of what is what. This is what leads to understanding and understandidng is most impotant for human life (we lack instincts to guide our actions, so understanding is what we need for this). Bad is what thwarts understanding, knowledge. Now, of course, there are many kinds of good and bad things, processes, institutions, conditions, states of affairs, but at bottom the right answer (as far as I can make out) is what I said above. If one gives up thinking about the world, that is the worst one can do because then confusion, misunderstanding, and eventually misguided calculation (covering up, hiding one’s mindlessness, one’s flawed character) will take over, and this is what issues in vice and crime.
There are, of course, other answers people have offered but as far as I can tell, the one I gave is the right answer to your question (put, obviously, very briefly, sketchily).
Expert: Richard Doczy
Cited from: Web

