Assertion: gratitude | /r/HasProperty | thought as virtue
Facets:
value: in moral philosophy literature
type: LOCATION
value: commonly
type: DEGREE
value: in emmons
type: LOCATION
value: in mccullough
type: LOCATION
Source sentences:
text: Gratitude is commonly thought of as a virtue in moral philosophy literature (Emmons & McCullough, 2003).