https://quotefancy.com/perseverance-quotes
“If you can’t fly then run, if you can’t run then walk, if you can’t walk then crawl, but whatever you do you have to keep moving forward.”
— Martin Luther King Jr.
“It's not that I'm so smart, it's just that I stay with problems longer.”
— Albert Einstein
このような内容も。
“A committee is a thing which takes a week to do what one good man can do in an hour.”
— Elbert Hubbard