nothing comes of nothing
Nothing comes into being without something causing or compelling it. I just don't understand—something has to be causing this severe malaise. Nothing comes of nothing, after all. You're not going to just end up in a high-paying job without putting in the time and effort to qualify for one. Nothing comes of nothing.
Nothing comes of nothing.
Prov. If you contribute nothing, you will get nothing. Jill: Why are you so depressed today? Jane: No reason. Jill: There has to be a reason. Nothing comes of nothing. I'm not surprised you did so poorly in school; you haven't been putting in any effort. Nothing comes of nothing.