Those who think they know it all have no way of finding out they don't..
I don’t want to know anything, and I want to know it all
Nothing's worse than a woman know-it-all.
An important mark of a good leader [is] to know you don’t know it all and never will.
If you think you know it all, you really know nothing.
The only things worth learning are the things you learn after you know it all.
That is the second time you have spoken out of turn, Miss Granger,” said Snape coolly. “Five more points from Gryffindor for being an insufferable know-it-all.
I had a million plans. I knew what I was going to do. I had the next few years of my life all figured out. But what I didn’t know was that within a few hours all those plans would change. Ms. Know-it-all didn’t quite know it all so much then.
My concept of an advice giver had been a therapist or a know-it-all, and then I realized nobody listens to the know-it-alls. You turn to the people you know, the friend who has been in the thick of it or messed up - and I'm that person for sure.