Who said "The reward of suffering is wisdom bought with pain."?

This quote is attributed to Fernando Pessoa.

The reward of suffering is wisdom bought with pain. - Fernando Pessoa

"The reward of suffering is wisdom bought with pain."

Fernando Pessoa Perseverance

Poet Portuguese 1888–1935

"I am not I; I am this one walking beside me whom I do not see."

"To be great, be whole; exclude nothing, exaggerate nothing that is not you."

"The worst prison people live in is the fear of what other people think."

"I love without knowing how, or what, or even if I exist."

"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."