John Maxwell has excellent weekly blog for managers and leadership 

http://www.johnmaxwell.com/blog/dont-forget-mothers-day

A mother is not a person to lean on, but a person to make leaning unnecessary. –Dorothy Canfield Fisher

Mothers hold their children’s hands for a short while, but their hearts forever. –Unknown

A mother is a person who, seeing there are only four pieces of pie for five people, promptly announces she never did care for pie. –Tenneva Jordan

I love my mother as the trees love water and sunshine–she helps me grow, prosper, and reach great heights. -Adabella Radici

My mom is a never-ending song in my heart of comfort, happiness, and being. I may sometimes forget the words but I always remember the tune.- Graycie Harmon

We may not be able to prepare the future for our children, but we can at least prepare our children for the future. -Franklin D. Roosevelt