macbook air 开机没有小头像（macbook air强制开机方法）

 What oxygen is to the lungs, such is hope to the meaning of life. 希望对于生活的意义，就像氧气对肺那样那样的重要。

 A day without sunshine is like night. 没有阳光的白日如同黑夜。

 Sometimes you need to look back, otherwise you will never know what you have lost in the way of forever searching. 偶尔要回头看看，否则永远都在追寻，而不知道自己失去了什么。

 It'd be better to light up the candle than curse the darkness.No one can give you brightness expect yourself. 与其诅咒黑暗，不如燃起蜡烛。没有人能给你光明，除了你自己。