Who said "Humor brightens even the darkest days."?

This quote is attributed to Pikachu.

Humor brightens even the darkest days. - Pikachu

"Humor brightens even the darkest days."

Pikachu Humor

"Pika pika!"

"Pikachu!"

"Pika pika chu!"

"I choose you!"

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."