Who said "Laughter is the best lubricant for the soul."?

This quote is attributed to Flexo.

Laughter is the best lubricant for the soul. - Flexo

"Laughter is the best lubricant for the soul."

Flexo Humor

"Bending is an art, and I am its masterpiece."

"Why settle for one beautiful thing when you can have many?"

"A true bender never bends the same way twice."

"Shiny things call to those with refined tastes."

"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."