Mind是“头脑”，matter是“物质”。这个短语是什么意思呢？请看对话：

    A: Did John win the tennis game yesterday?

    B: Yes, he did! Given his injured knees, it’s a miracle.

    A: He played through many injuries. This is a true example of mind over matter.

    Note: Mind refers to one’s free will. Matter refers to physical matter, here the physical body. The body, when injured, is in pain. However, if the pain is to a degree manageable, players use their mind to block out the pain and continue to play. It’s not that the pain caused by the injury disappears — it is still there — just that it’s being ignored and overcome. In other words, out of mind, out of sight.