Who said "My friend is sad, so I'll be sad too."?

This quote is attributed to Ralph Wiggum.

My friend is sad, so I'll be sad too. - Ralph Wiggum

"My friend is sad, so I'll be sad too."

Ralph Wiggum Friendship

"I'm in danger."

"Me fail English? That's unpossible."

"Eat my shorts."

"Ay caramba!"

"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."