St. Cyril of Jerusalem, "For us Christians, the first virtue of godliness is to honor our parents—to pay back the troubles of those who bore us, and to give them whatever comforts we can with all our strength. 
For if we repaid them as much as possible, we could still never pay them back for their gift of life. Then they will enjoy the comfort we provide, . . . 

And then won’t our Father in heaven accept our good intentions, and judge us worthy to ‘shine like the sun in the Kingdom of our Father’ (Matthew 13:43)?"

Today if your parents are still living, call them and tell them you love them and thank them for being your parents.  If your parents are deceased take some quiet time at Church or in your home and to say a prayer of thanksgiving for them.

May God Be Praised!