Dialog 1 read between the lines [ 行間を読む ]

Angela:Are you going to apply for that job in the paper?
Yukio:No. The want ad says they are looking for someone who is "highly motivated to make money" and "enjoys a challenging environment."
Angela:What's wrong with that? Sounds good to me.
Yukio:You have to read between the lines. It means that this is a very stressful sales position. No, thanks!
Angela:Oh, I see.

Dialog 2 no pain, no gain [ 苦労なくして得るものなし ]

Angela:What was your work-out routine before you became an Olympic champion?
Yukio:I used to run about ten kilometers every morning and evening. I also used to do sprint workouts around the track for two hours everyday and run in the mountains on the weekends.
Angela:Wow! That sounds exhausting!
Yukio:Well, no pain, no gain.