Dr. Felix Benet: You observe: those finger marks cannot be seen in the light!


--Boris Karloff (as Dr. Janos Rukh) in The Invisible Ray

Dr. Henryk Savaard: Always remember I offered you life, and you gave me death!


--Boris Karloff (as Dr. Henryk Savaard) in The Man They Could Not Hang

Dr. Henryk Savaard: Think of it! The Edison or Pasteur of tomorrow need not die merely because his heart is worn out. We'll give him a new heart taken perhaps from the body of a young man who's been killed in a automobile accident. And our great genius is awakened to another sixty years of useful life! You ask me if that's a benefit to mankind? I answer it's the gift of eternal life! But whether man's wise enough or old enouh to receive such a gift, I don't know. I don't know!


--Boris Karloff (as Dr. Henryk Savaard) in The Man They Could Not Hang

Dr. Henryk Savaard: We've taken a human life! If we can't restore that life, the law will call it murder.


--Boris Karloff (as Dr. Henryk Savaard) in The Man They Could Not Hang

Dr. Henryk Savaard: You who have condemned me, I know your kind. Your forbears poisoned Socrates, burned Joan of Arc, hanged, tortured all those whose offense was to bring light into darkness. For you to condemn me in my work is a crime so shameful that the judgement of history will be against you for all the years to come!


--Boris Karloff (as Dr. Henryk Savaard) in The Man They Could Not Hang

Dr. Janos Rukh: It poisoned me.
[pause as his dog comes up; he pets it, and it dies]


--Boris Karloff (as Dr. Janos Rukh) in The Invisible Ray

Dr. John Garth: And when my body is brought back from the autopsy room, apply the tests that i've outlined to you.
Dr. Ralph Howard: But...
Dr. John Garth: ...and you must forget that we've worked together, that we are friends. You must go on! Learn what you can from the study of my heart, my brain, and my blood!


--Boris Karloff (as Dr. John Garth) in Before I Hang

Dr. John Garth: Someday, somehow, medical science will find a way to end the needless, ghastly suffering caused by the ravages of age!


--Boris Karloff (as Dr. John Garth) in Before I Hang

Dr. John Garth: There's a curtain, a wall I can't get through.


--Boris Karloff (as Dr. John Garth) in Before I Hang

Dr. John Garth: Well, you want to go on living, don't you?
Victor Sondini: Why, I've had a very full life, I... After all, man's span of life is only supposed to be threescore and ten.
Dr. John Garth: Who made that rule? George, your old age is a disease, and I can cure it!


--Boris Karloff (as Dr. John Garth) in Before I Hang