Examples

• My mom always told me that we could never measure our wealth by money but by our friends. She would surely be glad to meet you and know how rich I turned out to be!
• I'm glad friendship doesn't come with price tags. For if it does, I'd never afford someone as great as you.
•  Each day God sends His angels to guide us. We don't expect to see them with wings, or with halo flying above their heads. Instead, they come in disguise and we call them friends. Thank you for being an angel to me
•  A friend is like a book that has to be read to appreciate its beauty. As such, you're one of the finest books ever written. How I wish you could be reprinted! 
•  What are the differences between a peso and a friend? A peso is easy to earn, a friend is hard to find. A peso loses its value, a friend increases its worth. I don't have a peso but I have you!
•  Care is the main ingredient that keeps true friendships alive despite separation, distance and time. Care sustains love. Since I can't see you, let my care be with you, friend!
•  What is a friend? She looks out for you, inspires you, laughs with you, cries with you, understands you, guides you and walks with you. That's what a friend is…you.
• Colors may fade, the sun may not shine, the moon may not be bright, heartbeats may stop, lives may pass but our friendship, I'll treasure 'till the day my heart stops. 
• When you're down, I'll be there to cheer you up. When you're tired, I'll be there to lift you up. I'll be your friend no matter what!