Can you finish this quote? Please help, it's important?

I'm helping my mom move and we ran across an old cross stitch that she had been working on. She got all teary so I asked what it was. I guess she was making it to give to her parents on her wedding day, but she never finished it. Well I'm going to be getting married soon and I'd love to finish it for her and give it to her on my wedding day.

The problem is I'm not sure if it's a real quote or just something she was writing and I want it to be a surprise so I can't ask her. Here's what she had finished:

"Nothing is more beautiful than a parent's love and I'm so glad I grew up surrounded by yours. You have enriched my life with tender devotion on..."

The last word isn't necessarily "on" but she doesn't have anything left after that.

Is this something you've come across before? Keep in mind it would have to be about 20+ years old.

I understand that this may have just been something she wrote and, in that case, I'll just have to make it up. But I wanted to give this a shot first. Especially since she said "I wanted to finish the quote before adding the border on the bottom" so I assume it's something she read.

If you could help me out I'd greatly appreciate it!