“Whoever said practice makes perfect was an idiot. Humans can’t be perfect because we’re not machines. The best thing you can say about practice is that it makes…better.”
Keir Gilchrist - Sam Gardner

“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.”

Sydney Greenstreet - Kasper Gutman

“- Alberta Marlow: I'm not so obsessed with money as you seem to be. I can do without it.
- Rick Leland: You stick around with me and you'll get plenty of practice.”
Mary Astor - Alberta Marlow
Humphrey Bogart - Rick Leland

“The law must be engraved in our hearts and practiced every minute to the letter and spirit.”
Ronald Colman - Professor Michael Lightcap

“- Lt. Joe Rossi: These nights are killers, aren't they?
- Cadet Ezra Parker: Yeah, I lie in my bunk with my clothes on and try to sleep, but every time that engine slows, my heart speeds up. In time, I think I can train myself to have an iron nerve, like you have.”
Humphrey Bogart - Lt. Joe Rossi
Dick Hogan - Cadet Ezra Parker