Anatole France: 
To accomplish great things, 
we must not only act, but also dream; 
not only plan, 
but also believe
 
Pamela Glenconner: 
Bitter are the tears of a child: Sweeten them.
Deep are the thoughts of a child: Quiet them.
Sharp is the grief of a child: Take it from her.
Soft is the heart of a child: Do not harden it