We know what will make us happy, but we don't know how to measure it. We measure our success by using social comparisons, like a salary, or with awards.

Because people tend to use vague criteria, they are never satisfied when they reach it and always want more. This leads to an...

If you do what you enjoy and are naturally good at, and if you focus on it long enough, you will probably advance toward mastery anyway, and fame and money will be a byproduct.

• Having meaningful social relationships
• Being very good at something you do
• Having the freedom to make life decisions independently.

Three things that don't necessarily contribute to your happiness:

• Being better educated
• Being richer