眼不见心不烦耳不闻心不乱
[yăn bù jiàn xīn bù fán ĕr bù wén xīn bù luàn]
Translated as 'Out of sight, out of mind.' This suggests when you avoid certain influences or reminders (such as things that irritate or upset you), you can maintain peace in your heart. Thus, one stays less bothered mentally if they ignore those elements. A common mentality among many people in China.