you must have a vision for the next 50 years

If you are having-
a satisfactory over all knowledge 
with positive forward looking attitude
and
are able to communicate
and
ready to share,
withstand the pressure of queries ,
able to respond to the specific intellectual hunger and thirst of the other side  and
are able to feel the other side's view 
and
 foremost is
you are really cruel 
and
impartial
like a teacher
loving ,
kind,
and
caring
and well read 
like a teacher
you can be a trainer,
guide, and leader but you must have a vision for the next 50 years.