原來如此。那就說說其中的一個觀點吧。

The best career is something that captures your passion (something you really like to do), your strength (something you are really good at), and something that makes money.

Sth you really like to do -- to understand yourself is not easy, very often we don't know what we really want;

Sth you are really good at -- this will reduce your opportunity cost (note: this is more of a self-examination, rather than comparing to others);

Sth that makes money -- a good technology/skill without a good market doesn't really help.

其他的就不多說了，仁者見仁，智者見智。
歡迎建設性的交流看法。