Translation of "Happier" in Chinese

I want to be happier.

我想变得更幸福。

Tom seems to be much happier than me.

汤姆看来比我高兴。

The rich are not always happier than the poor.

有钱人未必比穷人幸福。

If we only wanted to be happy, it would be easy; but we want to be happier than other people, and that is almost always difficult, since we think them happier than they are.

如果我们只想获得幸福，那很容易实现；但是我们希望比别人更幸福，却很难，因为我们想象别人的幸福总是超过他们实际的情形。