Who said "Jokes are the safety valves of repression."?

This quote is attributed to Sigmund Freud.

Jokes are the safety valves of repression. - Sigmund Freud

"Jokes are the safety valves of repression."

Sigmund Freud Humor

Psychologist and Psychiatrist Austro-Hungarian 1856–1939

"The only way out is through."

"Being entirely honest with oneself is a good exercise."

"We are never so defenseless against suffering as when we love."

"Dreams are the royal road to the unconscious."

"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."