Ἐν τίνι κατορθώσει νεώτερος τὴν ὁδὸν αὐτοῦ; ἐν τῷ φυλάξασθαι τοὺς λόγους σου.

1. Ἐν
   In
2. τίνι
   some
3. κατορθώσει
   will be established
   will he direct, will succeed
4. νεώτερος
   younger
5. τὴν
   the
6. ὁδὸν
   way
7. αὐτοῦ
   his
8.  
   ;
    
9. ἐν
   in
10. τῷ
    the
    to the
11. φυλάξασθαι
    to guard against
    keep
12. τοὺς
    the
13. λόγους
    words
14. σου
    your
15.  
    .
     

How will a young man direct his way? By keeping your words.