Here are some quotes written for fathers :

My father gave me the greatest gift anyone could give another person, he believed in me.
Jim Valvano
I've had a hard life, but my hardships are nothing against the hardships that my father went through in order to get me to where I started.
Bartrand Hubbard
Fathers, like mothers, are not born. Men grow into fathers and fathering is a very important stage in their development.
David Gottesman