dead end

He's worried that his job has reached a dead end.

No! He can find a breakthrough.
There's a way for sure.

by the book

Be sure to do everything by the book - I don't want any mistakes.
Risk management should be always the first to remember.

better safe than sorry

Watch out for the pitfalls!
You can't be careful enough.

listen to your heart

I have to get out of the crowd - I can't hear myself think here.

it's a sin

I hope he'll be able to turn over a new leaf and improve his behavior.

move forward

I think we should draw a line under our past problems and move forward.

put first things first

she always makes a meal out of the job - what a waste of time.