Education is not to reform students or amuse them or to make them expert technicians. It is to unsettle their minds, widen their horizons, inflame their intellects, teach them to think straight, if possible.
Hence, in desiring, the more the enjoyment is delayed, the more fancy begins to weave about the object images of future fruition, and to clothe the desired object with properties calculated to inflame the impulse.
Conflicts are never caused in any simple way by identity, culture or economics. Where resources are scarce, or there are strong historical memories of conflict, small events are more likely to inflame passions.