Chénggōng de sān gè yàosù shì nǔlì, tiānfù hé jīyù.
The three key factors of success are effort, talent, and opportunity.
Tips
usage
要素 (essential factor, formal) vs 因素 (yīnsù, factor/element, general) vs 元素 (yuánsù, element, scientific/basic). 要素 emphasizes importance; 因素 is neutral; 元素 is for basic building blocks.