Batman Begins (2005)
Ken Watanabe: Ra's Al Ghul
[Bruce is refusing to demonstrate his commitment to justice by executing a criminal]
Ra's Al Ghul : You cannot lead these men unless you are prepared to do what is necessary to defeat evil.
Bruce Wayne : And where would I be leading these men?
Ra's Al Ghul : Gotham. As Gotham's favored son you will be ideally placed to strike at the heart of criminality.
Bruce Wayne : How?
Ra's Al Ghul : Gotham's time has come. Like Constantinople or Rome before it the city has become a breeding ground for suffering and injustice. It is beyond saving and must be allowed to die. This is the most important function of the League of Shadows. It is one we've performed for centuries. Gotham... must be destroyed.
[watching Bruce defeat Ducard]
Ra's Al Ghul : Impressive.
Ra's Al Ghul : [to Batman] You will never learn.