A Stake Conference Question

Last night in Stake Conference, one of the speakers wondered aloud whether in Matthew 5:16 the word "so" in "let your light so shine before men" should be understood as "in this manner" or "to a great extent." He examined both for a bit and said that he preferred the latter.

The Greek is:

οὕτως λαμψάτω τὸ φῶς ὑμῶν ἔμπροσθεν τῶν ἀνθρώπων

Those who can read Greek will have noticed that the equivalent of "so" in Greek is οὕτως which means "in this manner." The fact does not particularly make the point he was trying to make, but his query is at least an answerable question.