[naoqj]

> Life is best spent in service to others.

[citation needed]

[avgcorrection]

I think this is one of those things that is learned through experience (wisdom) and will never be proven with any citations (i.e. peer-reviewed, rigorous collective experience).

Not that I have that wisdom myself. I only think I might arrive at that conclusion eventually.

[jimbokun]

You can't get from an is to an ought.