"Always be the smartest (eg, 'most well informed' or 'best educated') person in the room - ON SOMETHING". Or to paraphrase slightly "Have a thing that is your speciality, to the point that you are almost always the most knowledgeable person in the room w/r/t that topic." I think this is a valuable idea to keep in mind, even if it remains forever an aspiration (which it probably will if interpreted in the strictest se…
That’s the opposite of advice I’d give to someone. If you’re the smartest in the room, then you’re in the wrong room.
If you read closely, the two statements doesn't even contradict. S(he) said that it's good that you are the best AT SOMETHING. You said, it's not good to be THE BEST.