I don't think you can ever do your best. Doing your best is a process of trying to do your best.
I have to remind myself that some birds aren't meant to be caged. Their feathers are just too bright. And when they fly away, the part of you that knows it was a sin to lock them up DOES rejoice. Still, the place you live in is that much more drab and empty that they're gone. I guess I just miss my friend.
Only when one plunges into the powerful current of the times will one's life shine brilliantly.
Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.