Richard Mason: Doctor, you've had a lot of experience with mental cases assuming I am a mental case. Ever run across anything like this before?
Dr. Mark Hamilton: Only once, years ago when I was a student in Vienna.
Richard Mason: What was it?
Dr. Mark Hamilton: Man who murdered his wife.


--Sydney Greenstreet (as Dr. Mark Hamilton) in Conflict

Richard Mason: What're you doing here? What've you got to do with all of this?
Dr. Mark Hamilton: I caught the one slip you made. The rose. You said Kathryn was wearing it the last time you saw her.
Richard Mason: She was! It was pinned to her coat.
Dr. Mark Hamilton: I gave her that rose when she stopped at my house. A rose you couldn't have seen when you were supposed to be helpless at home.


--Sydney Greenstreet (as Dr. Mark Hamilton) in Conflict

Alexander Yardley: Good morning; Merry Christmas. I hope I'm in time to see you flip the flapjacks.


--Sydney Greenstreet (as Alexander Yardley) in Christmas in Connecticut

Colonel Robinson: [To Rudick] In international diplomacy, the shortest distance between two points is never a straight line.


--Sydney Greenstreet (as ) in Background to Danger

Colonel Robinson: Curious touch of the grotesque: A dead man on the floor; a condemned man sitting before me; and a Strauss waltz as a funeral march. What could be more entertaining?


--Sydney Greenstreet (as ) in Background to Danger

Colonel Robinson: They're taking you downstairs to the cellars. You'll be separated from this room by several meters of stonework, but I think I'll be able to hear your reactions to Capt. Mailler's persuasive methods.


--Sydney Greenstreet (as ) in Background to Danger

Dr. Mark Hamilton: [on unsolved murder and perfect crime] Laws of chance are overwhelmingly against it, so are the laws of human nature. You see a murderer's whole safety depends upon a complication of lies. If he had no motive, no access, if his alibi is perfect, even if he feels no remorse, think of the strain he endures in knowing one error would be his undoing. That if he is forgetful enough to conflict one of his statements, his act of innocence is unconvincing in any details, if he so much as talks in his sleep.


--Sydney Greenstreet (as Dr. Mark Hamilton) in Conflict

Dr. Mark Hamilton: I knew everything there was to know, but I didn't know enough to get married.


--Sydney Greenstreet (as Dr. Mark Hamilton) in Conflict

Dr. Mark Hamilton: Never having been married myself, I've always had a warm spot in my heart for those who have achieved it.
Evelyn Turner: Achieved it?
Dr. Mark Hamilton: Certainly, as a psychologist I can assure you a happy marriage is indeed a rare achievement.
Evelyn Turner: Isn't that rather cynical?
Dr. Mark Hamilton: Well perhaps it is but you see marriage is a very tricky business. People have impulses, compulsions, drives that to say towards escape, escape from loneliness. They seek their escape in the companionship of someone else and lo just when they think they've achieved it, they find they put on their own handcuffs.


--Sydney Greenstreet (as Dr. Mark Hamilton) in Conflict

Mr. Peters: [Repeated with small variations throughout the story] How little kindness there is in the world today!


--Sydney Greenstreet (as ) in The Mask of Dimitrios