There's not really any 'Plato.'

It's all allegedly Socrates in his dialogues.

But a lot of that content is credited to Plato instead, and in many cases it probably is his own stuff being put into the mouth of his more famous teacher at the time.

(In particular, I tend to get the sense the parts that end up as long monologues that are unequivocally being agreed with by the other person tend to be Plato's own stuff, as Socrates seemed to like nothing better than disagreement and in the genuine strong parts will even be his own devil's advocate if no one else stepped up.)

So-crates!

We know Socrates from Plato's writings, as he himself prefered to just talk to people. The way I understand it early works of Plato are Socrates, late works are Plato's own philosophies, and there's a mix in between. But we don't know for sure where Socrates ends and Plato begins.

His other good one was "like sand through the hourglass, so are the days of our lives."

No, I'm pretty sure that's from a TV show my mom used to watch. /s