He's locked in his old laboratory for hours on end. He doesn't eat and he doesn't sleep.

5 seconds sound clip from the The Curse of Frankenstein movie soundboard.

You can hear this line at 00:34:17.453 in the Blu-ray version of the movie.

Quote context

[...]

- On the contrary, Professor Bernstein, it is we who are in your debt.

- When Victor told me that you had accepted our invitation, I was overjoyed.

- You honor me, Miss Elizabeth.

- Not only overjoyed because you were to stay with us, but because your presence at dinner tonight would ensure my Victor's presence.

- Elizabeth thinks I spend too much time in my laboratory.

- He's locked in his old laboratory for hours on end. He doesn't eat and he doesn't sleep.

- I, for one, think the world would be a far better place without research. At least, my world would be.

- She may be right. One can spend too much of one's life locked in stuffy rooms seeking out obscure truths. Searching, researching until one is too old to enjoy life.

- You see, Victor? The professor's on my side.

- You've failed me, Professor.

[...]