It is with noble sentiments that bad literature gets written.
To win ones joy through struggle is better than to yield to melancholy.
Nothing is good for everyone, but only relatively to some people.
Other people's appetites easily appear excessive when one doesn't share them.
It is not always by plugging away at a difficulty and sticking to it that one overcomes it; often it is by working on the one next to it. Some things and some people have to be approached obliquely, at an angle.
From the satisfaction of desire there may arise, accompanying joy and as it were sheltering behind it, something not unlike despair.