Definition of "conscientiously"

STORES and tobacco were running out; it was time for a trip to the township. Also for a conscientiously taken holiday.

1938, Norman Lindsay, Age of Consent, 1st Australian edition, Sydney, N.S.W.: Ure Smith, published 1962, page 58

Others who conscientiously attended the Technical College at night often drooped over their desks in a doze, and one does not wonder at it.

1944 September and October, A Former Pupil, “Some Memories of Crewe Works—I”, in Railway Magazine, page 285