Who said "Friends, as time goes on, become more and more precious."?

This quote is attributed to Don Quixote.

Friends, as time goes on, become more and more precious. - Don Quixote

"Friends, as time goes on, become more and more precious."

Don Quixote Friendship

Character in Don Quixote

Buy "Don Quixote" on Amazon

"The Knight of the Sorrowful Countenance"

"I know who I am, and who I may be, if I choose."

"Facts are the enemy of truth."

"The pen is mightier than the sword."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."