According to

According to X means 'If what X says is true'. Note that after is not used in this sense:

According to Harry, it's a good film (*not After Harry-...)


We do not usually give our own opinions with according to. Compare:

According to Joan, the people across the road are moving.
(= If what Joan says is true,...)
According to the timetable, the train gets in at 8.27.
In my opinion, she's sick, (*not According to me,...)