How are Sydney Carton and Charles Darnay the same?

Sydney Carton and Charles Darnay share a number of similarities. Both are well-educated men of good family who are caught up in the turmoil of the French Revolution. Both are also shown to be kind, compassionate, and courageous. However, there are also some key differences between the two men. Carton is a cynical, dissolute alcoholic, while Darnay is a more earnest, idealistic individual. Carton is also more willing to sacrifice himself for others, while Darnay is more concerned with his own safety and happiness. Ultimately, these differences lead to different fates for the two men. Carton dies a hero, while Darnay lives on to marry Lucie Manette and raise a family.