A hard question for anyone to ask. Here is one view (attributed to Socrates). (Source: http://www.dumblittleman.com/2010/06/7-pieces-of-wisdom-from-socrates.html, last accessed 2012-10-07). At the end of the day (and come the singularity), you are what you think, so be careful what thoughts are going round that head of yours.

Be Content
Faithful are the wounds of a friend
Study
Be by Doing
Gaining a Good Reputation
Avoid False Words
Beware of a Busy Life