Quote by Aristotle

"Excellence is never an accident. It is always the result of high intention, sincere effort, and intelligent execution."

Aristotle
Philosopher Ancient Greek 384–322

More from Aristotle

"Well begun is half done."
"We are what we repeatedly do. Excellence, then, is not an act, but a habit."
"Happiness depends upon ourselves."
"It is well to be up and doing."

All quotes by Aristotle