Who said "I train to be the best version of myself."?

This quote is attributed to Arrow.

I train to be the best version of myself. - Arrow

"I train to be the best version of myself."

Arrow Success

"My name is Oliver Queen. After five years in hell, I have come home with only one goal: to save my city."

"I'm not the man I was."

"You have failed this city."

"I'm a monster."

"Success comes to those who never give up."

"Success is measured by happiness, not money."

"You make your own luck in this world."

"You have to be organized to be successful in anything."