AFI #049 Colin Clive as Henry Frankenstein from Frankenstein (1931)

Henry: Look! It's moving. It's sha — it's... it's alive. It's alive... It's alive, it's moving, it's alive! It's alive, it's alive, it's alive! It's ALIVE!
Victor: Henry — in the name of God!
Henry: Oh, in the name of God! Now I know what it feels like to BE God!

- Colin Clive (1900-1937) as Henry Frankenstein from Frankenstein (1931)

The bolded line is ranked #49 in the American Film Institute's list of the top 100 movie quotations in American cinema.