Who said "Patience is a virtue, but so is knowing when to act."?

This quote is attributed to Frankie Howerd.

Patience is a virtue, but so is knowing when to act. - Frankie Howerd

"Patience is a virtue, but so is knowing when to act."

Frankie Howerd Patience

Stand-up Comedian British 1917–1992

"I'm a martyr to my own sensitivity."

"The great thing about getting older is that you don't lose all the other ages you've been."

"Titter ye not!"

"Ooh, what a gay day!"

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."