Who said "Mules are patient animals, but even they have limits."?

This quote is attributed to Anton Chekhov.

Mules are patient animals, but even they have limits. - Anton Chekhov

"Mules are patient animals, but even they have limits."

Anton Chekhov Patience

Playwright Novelist Russian 1860–1904

"Man will become better when you show him what he is like."

"Any idiot can face a crisis, it is the day to day living that wears you out."

"If you fear something, you give it power over you."

"Don't tell me the moon is shining; show me the glint of light on broken glass."

"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."