I want to remind you that success in life is based on hard slogging.
There will be periods when discouragement is great and upsetting,
and the antidote for this is calmness and fortitude
and a modest yet firm belief in your competence.
Be sure that your priorities are in order
so that you can proceed in a logical manner,
and be ever mindful that
nothing will take the place of persistence.
Publisher and philanthropist Walter Annenberg in a letter to his son.