Actions such as squirrels burying chestnuts and arctic foxes burying bird eggs are purely instinctive actions
The important difference between civilized man and savages or other animals is that instinctive impulses are suppressed by foresight, only when a man does something not by instinctual impulses, but because his reason tells him that in the future At some point he would benefit from it, and that's when the real foresight came