Who said "One must persevere through ze most difficult times."?

This quote is attributed to Pepé Le Pew.

One must persevere through ze most difficult times. - Pepé Le Pew

"One must persevere through ze most difficult times."

Pepé Le Pew Perseverance

"Ah, mon amour, you are ze most beautiful creature I 'ave ever laid my eyes upon!"

"Come 'ere, my little darling, and let me show you ze meaning of true romance."

"Ze way to a woman's 'eart is through persistence and charm, non?"

"I am Pepé Le Pew, ze greatest lover in all of ze world!"

"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."