Who said "The warrior who knows himself needs fear no opponent."?

This quote is attributed to Shifu.

The warrior who knows himself needs fear no opponent. - Shifu

"The warrior who knows himself needs fear no opponent."

Shifu Wisdom

"There is no secret ingredient. It's just you."

"When will you realize? The more you take, the less you have."

"Your story may not have such a happy beginning, but that does not make you who you are."

"It is said that the Dragon Warrior will bring peace to the Valley."

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."