Who said "The nights are longest where the sun shines least."?

This quote is attributed to William Butler Yeats.

The nights are longest where the sun shines least. - William Butler Yeats

"The nights are longest where the sun shines least."

William Butler Yeats Perseverance

Poet Playwright Irish 1865–1939

"The best way to live is to act as if you are already dead."

"Do not wait to strike till the iron is hot; but make it hot by striking."

"There are no strangers here; only friends you haven't yet met."

"How can we know the dancer from the dance?"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."