Quotes from book
The Maltese Falcon

The Maltese Falcon is a 1930 detective novel by American writer Dashiell Hammett, originally serialized in the magazine Black Mask beginning with the September 1929 issue. The story is told entirely in external third-person narrative; there is no description whatever of any character's internal thoughts or feelings, only what they say and do, and how they look. The novel has been adapted several times for the cinema.

“He felt like somebody had taken the lid off life and let him see the works.”
Source: The Maltese Falcon

Chap. 11, "The Fat Man"
Dialogue between the characters Kasper Gutman (the "fat man") and Sam Spade.
Source: The Maltese Falcon (1930)
Context: "We begin well, sir," the fat man purred … "I distrust a man that says when. If he's got to be careful not to drink too much it's because he's not to be trusted when he does. … Well, sir, here's to plain speaking and clear understanding. … You're a close-mouthed man?"
Spade shook his head. "I like to talk."
"Better and better!" the fat man exclaimed. "I distrust a close-mouthed man. He generally picks the wrong time to talk and says the wrong things. Talking's something you can't do judiciously unless you keep in practice."

“My way of learning is to heave a wild and unpredictable monkey-wrench into the machinery.”
Source: The Maltese Falcon

“Our conversations have not been such that I am anxious to continue them in private.”
Cairo
The Maltese Falcon (1930)