[vdoma]

Making a living out of doing what you love will only work if you're exceptionally good at it or if there's plenty of demand for it. For example, there's plenty of people who love to play chess, but if you can't break into the top 100 in the world, forget about living off it. I know plenty of IMs and GMs who struggle to making a living. I think it's important to find a balance between doing what you love and doing what's practical. And if you develop the discipline to manage your non-work hours, there will be plenty of time for play.

By being hated, I guess the author wants us to stay true to our convictions. It's okay to be hated, as long as there are supporters as well. It's very difficult to stand alone, though sometimes we must. Even so, if we can be accommodating but still stay true to our convictions most of the time, that's the way to go.