The quote from Alexandre Dumas's "Twenty Years After" suggests that truly great individuals recognize and appreciate efforts that exceed expectations or defy the odds. They acknowledge when someone accomplishes what seems unachievable, rather than what they believe they could easily accomplish themselves. This distinction highlights the value of extraordinary contributions and the humility of those who can differentiate between what is simply attainable and what requires exceptional talent or determination.

Dumas underscores the idea that great people have a clear perception of ability and achievement. They do not dwell on their own limitations but instead focus on the potential of others, especially when it comes to tackling challenges that appear insurmountable. This perspective fosters respect and gratitude for those who push boundaries, emphasizing the importance of recognizing extraordinary efforts in a world where many take the ordinary for granted.