mac更换小头像（mac更换头像又变回）

 For something,we can't understand when we are young but by the time we understand,we are no longer young. 有些事情，当我们年轻的时候无法懂得，当我们懂得的时候已不再年轻。

 The most fearful thing in the life is the darkness deep in your heart. But soul told us that you shall have courage as long as the heartbeats. 生命最大的恐惧，不过是来自于心底那个不去发现的黑暗，但是灵魂告诉我们，只要还有心跳，就一定有勇气。

 First thrive and then wive. 先立业，后成家。

 Nothing seek ,nothing ftind. 没有追求，就没有收获。