E3DA34
Definition of an Emotion — Part III
Latin
Gratia seu gratitudo est cupiditas seu amoris studium quo ei benefacere conamur qui in nos pari amoris affectu beneficium contulit. Vide propositionem 39 cum scholio propositionis 41 hujus.
English (Elwes 1883)
Thankfulness or Gratitude is the desire or zeal springing from love, whereby we endeavour to benefit him, who with similar feelings of love has conferred a benefit on us. Cf. III. xxxix. note and xl.