[He hums, swaying gently on the spot.]

Still don't care about Gotham's history? [He asks, a teasing, knowing smile creeping into his voice. His amusement gives way to sombre thought.] Our legacies we shall leave behind are far bigger than us, Ed... it would have brought great joy to my heart to see that boy Martin following in my footsteps.

[He pines for what could've been, but not for the children he doesn't have. He's never had the time or the interest in becoming a biological parent.]

But he is where he is for his own safety.