according to

According to X means ‘in X’s opinion’, ‘if what X says is true’.

• According to Harry, it’s a good film.
• The train gets in at 8.27, according to the timetable.

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

• According to Anna, her boyfriend is brilliant. (= If what Anna says is true, …)
• In my opinion, Anna’s boyfriend is an idiot. (not According to me, …)