Who said "The key is consistency."?

This quote is attributed to Frank Sinatra.

The key is consistency. - Frank Sinatra

"The key is consistency."

Frank Sinatra Perseverance

Jazz Singer Actor American 1915–1998

"The best way to take care of the future is to take care of the present moment."

"You're nobody till somebody loves you."

"I've got you under my skin."

"Ring-a-ding-ding."

"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."