Wordnet 3.0
ADVERB (2)
1. 
 with good sense or in a reasonable or intelligent manner; 
- Example: "he acted sensibly in the crisis"- Example: "speak more sanely about these affairs"- Example: "acted quite reasonably"[syn: sanely, sensibly, reasonably]
2.  in a sane or lucid manner; 
- Example: "she is behaving rather sanely these days even though we know she is schizophrenic"
WordNet (r) 3.0 (2006):
sanely
    adv 1: with good sense or in a reasonable or intelligent manner;
           "he acted sensibly in the crisis"; "speak more sanely
           about these affairs"; "acted quite reasonably" [syn:
           sanely, sensibly, reasonably] [ant: unreasonably]
    2: in a sane or lucid manner; "she is behaving rather sanely
       these days even though we know she is schizophrenic" [ant:
       crazily, dementedly, insanely, madly]