note: sometimes read fast, sometimes slow

sometimes read fast to grasp the whole
sometimes read slow to digg into the details

learn the whole by learning the details
learn details without lost the whole

--
 ,           ,
/             \
((__-^^-,-^^-__))
`-_---' `---_-'
 `--|o` 'o|--'
    \  `  /
     ): :(
     :o_o:
      "-"