Who said "Solitude taught me I'm stronger than I thought."?

This quote is attributed to Donkey Kong.

Solitude taught me I'm stronger than I thought. - Donkey Kong

"Solitude taught me I'm stronger than I thought."

Donkey Kong Solitude

"Tie your shoes!"

"I'm so excited I could burst!"

"Let's-a-go!"

"You're my best friend!"

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."