Letter of thanks

Dear mom and dad,
I don't think a letter could ever tell you how thankful I am for you guys.  I may not always show it, but I just wanted to let you know that I truly do appreciate everything you guys do for me and my two sisters, you're daughters.  You've always told us that anything is possible if you work hard for it.  You two are a perfect example for anyone to follow, from you guys not growing up with much and not being able to go to college to starting your own business together and trying to provide as good of a life as possible for me and my sisters.  You never undervalue the importance of education as it wasn't possible for you two to attend college when you were younger and I think it's amazing how you two still managed to be successful with how little you came up with.  I just wanted to thank you, fro everything you do, and everything you continue to do for us.