Who said "Time is my greatest teacher."?

This quote is attributed to Groot (Variant).

Time is my greatest teacher. - Groot (Variant)

"Time is my greatest teacher."

Groot (Variant) Wisdom

"I am Groot."

"We are Groot."

"I am Groot. I am Groot. I am Groot."

"The greatest gift is the time we spend together."

"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."