恆心(粵音:hang4 sam1;英文:persistence)係種性格特質。如果話一個人有恆心(恆心度高),即係話佢冇咁易會因為挫敗而放棄手上追求緊嘅目標[1]。
- ↑ Cloninger, C.R.; Svrakic, DM; Przybeck, TR (December 1993). "A psychobiological model of temperament and character". Archives of General Psychiatry. 50 (12): 975-90.