Who said "To be Irish and not a little mad is impossible."?

This quote is attributed to Brendan Behan.

To be Irish and not a little mad is impossible. - Brendan Behan

"To be Irish and not a little mad is impossible."

Brendan Behan Humor

Playwright Novelist Irish 1923–1964

"I am a daylight atheist."

"There is no such thing as bad publicity except your own obituary."

"I respect kindness to great degree but I do not depend on it."

"The only thing to do with good advice is to pass it on."

"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."