If you know the value of every article of merchandise
but you don’t know the value of your own soul
it will have all been pointless.
You’ve come to know the fortunate
and the inauspicious stars,
but you don’t know whether you yourself
are fortunate or unlucky.
This, this is the essence of all sciences—
that you should know who you will be
when the Day of Reckoning arrives.
Rumi—Mathnavi III 2652-54