Who said "Laughter is the sound of the weak."?

This quote is attributed to Mr. Burns.

Laughter is the sound of the weak. - Mr. Burns

"Laughter is the sound of the weak."

Mr. Burns Humor

"Release the hounds!"

"I'm trying to be a better man, but it's exhausting."

"Money can be exchanged for goods and services."

"Smithers, release the robotic Richard Simmons!"

"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."