The first great lesson that a young man should learn is that he knows nothing.
He's not such a great writer and I think he knows it.
She took me under her wing and taught me everything she knows.
My grandfather has lived in Kyoto for over 50 years, so he knows his way about.
He quarrels with every person he knows.
Tom seems to always be running into people he knows.
One who knows no love knows no unhappiness.
She knows ten times as many English words as I do.
Someone who knows English well must have written this.
As a matter of fact, he knows very little of the matter.
Everyone knows that he worked hard to get to the top of the company.
Why is he looking at me as though he knows me?
Tom knows a good Chinese restaurant not too far from his office.
A man with a watch knows what time it is, a man with two watches is never sure.