This is a very interesting question to consider. If I were you, I would answer it by refering to a literary work that you are familiar with. There are two that come to my mind straight away, and I have included links to the enotes study guide section for them below.
The first is A Tale of Two Cities by Dickens. You will want to look at the character of Sydney Carton and how the conflict that he and other characters face in the novel as a result of the French Revolution reveals his true nature. What is particularly poignant about this is that at the beginning of the novel, he is revealed to be a drunkard who is wasting his life. It is only the love that he has for Lucie Manette, and then his promise to do whatever he can to protect both her and those she loves, that causes him to reveal his true goodness by sacrificing his life to save her husband.
The second text would be The Crucible by Arthur Miller. To respond to the statement, you will want to focus on the way that the conflict John Proctor faces thanks to the Salem witch trials and the way that his wife is incriminated forces him to be honest about his own failings, but also to accept death happily when a lie, and betraying his "name" could have given him life. The conflict that he faces forces him to make a very profound decision about who he is and what he stands for, and his death can be seen as a victory for goodness and truth in the face of so much deceit and falsehood.