"Le caractère, à long terme, est le facteur décisif dans la vie d'un individu et des nations également."

Simplified Meaning:

This quote tells us that the kind of person you are deep down really matters over time. It says that having good qualities like honesty, courage, and kindness is what truly shapes your life and the history of whole countries. For example, think about a company led by a trustworthy and fair leader versus one with a dishonest and selfish boss. The first company is likely to do well in the long run because people trust and like working there. Similarly, when a country is led by leaders with strong and good character, it often becomes more prosperous and fair. This idea can be applied to our own lives by focusing on building good personal qualities, as they will guide us through challenges and help us succeed in the long term.