I believe you are referring to this quote:
Mr. Spock: I object to you. I object to intellect without discipline; I object to power without constructive purpose.
Trelane: Oh, Mr. Spock, you do have one saving grace after all: you're ill-mannered! The Human half of you, no doubt?
Mr. Spock: I object to you. I object to intellect without discipline; I object to power without constructive purpose.
Trelane: Oh, Mr. Spock, you do have one saving grace after all: you're ill-mannered! The Human half of you, no doubt?