Original: «Experience shows that success is due less to ability than to zeal».
Fuente: Crum, Delores. Simple Strategies for Successful Living: A "How To Guide" for Getting the Life You've Imagined. Editorial Outskirts Press, 2018. ISBN 9781977201225. p. 86. https://books.google.es/books?id=15qCDwAAQBAJ&pg=PA86&dq=success+is+due+to+ability+than+to+zeal.+Charles+Buxton&hl=es&sa=X&ved=0ahUKEwjaxe-248PgAhUJJBoKHcCyBiwQ6AEIKDAA#v=onepage&q=success%20is%20due%20to%20ability%20than%20to%20zeal.%20Charles%20Buxton&f=false