@greatpath,
Today you shared a great quote again! Actually inner peace can be archive via meditation which learnt by Lord Buddha in Buddhism. Controlling the mind is the only way to make inner peace! In this quote it defined as "Not to allow another person or event to control your emotions"! That means we need to control our mind and then it automatically made the control of our body! So, this is a great quote and thank you very much for sharing such great quote with us!

Cheers~