Thomas Aquinas,
Summa Theologiae — Question 17 - OF HOPE, CONSIDERED IN ITSLEF(EIGHT ARTICLES)
“ In order to explain this we must observe that love and hope differ in this, that love denotes union between lover and beloved, while hope denotes a movement or a stretching forth of the appetite towards an arduous good. Now union is of things that are distinct, wherefore love can directly regard the other whom a man unites to himself by love, looking upon him as his other self: whereas movement is always towards its own term which is proportionate to the subject moved. Therefore hope regards directly one's own good, and not that which pertains to another. ”
