I know him
Je le connais personnellement.
I know him personally.
I think I know him.
Je le connais de vue, mais je ne lui ai jamais vraiment parlé.
I know him by sight, but I've never really spoken to him.
Je le connais lui, tout comme je connais Walther Bothe, von Weizsäcker, Diebner.
I know him, just as I know Walther Bothe, von Weizsäcker, and Diebner.
— Oppenheimer (2023)