Immediate Gratification

The cluster of grapes in bloom, suspended from the branch, is not desired by everyone, because it fails to possess an immediate pleasure. Rare indeed are those who rejoice at postponing pleasures, for people attach themselves naturally to the preference of present enjoyment, just as those pleasures whose utility is not immediate but resides in future hope are reckoned not to have the same usefulness.
--Nilus of Ancyra