Out of sight, out of mind.

Другие идиомы:

• have (someone or something) on one's mind
• out of shape
• mind the store
• have a mind like a steel trap
• of two minds
• out on parole
• out of print
• out of order
• out of the question
• out of reach
• out of courtesy
• out for blood
• out of one's shell
• speak one's mind
• mind over matter