Empathy as the Path to Victory and Destruction
Ender's GameEnder can only defeat an enemy when he understands it intimately, and that same empathy turns victory into horror.
increasing
Bearing strength in each event
decreasing
Reading the Enemy's Mind

Reading the Enemy's Mind
Ender learns to anticipate enemy movements by imagining himself as the enemy commander. The enemy's gate is down becomes a technique of total identification.
Context
Most commanders follow formations; Ender thinks from inside the opponent's perspective.
Significance
His empathy is a military weapon, but it also opens him to the pain of those he defeats.
Studying Bugger Battles

Studying Bugger Battles
Ender watches hours of bugger war footage and learns to admire the enemy's speed and unity. He copies their tactics while suppressing his disgust for what they have done.
Context
The propaganda videos are meant to dehumanize the buggers, but Ender's curiosity makes him see them as intelligent opponents.
Significance
He will later be able to predict bugger strategy because he has taught himself to think like them.
The Compassionate Commander

The Compassionate Commander
Mazer explains that the I.F. chose Ender because his empathy made him a perfect commander, but that same empathy would have made it impossible for him to kill if he had known the truth.
Context
The adults have constructed Ender as a paradox: a loving person who must be tricked into mass murder.
Significance
Empathy is shown to be both the source of Ender's genius and the cause of his unbreakable guilt.
Destroying What He Understands

Destroying What He Understands
Ender orders the destruction of the bugger planet because he knows it is the only move that can save the fleet. He understands the buggers' strategy so well that he can sacrifice them all.
Context
He has already learned that the buggers are a hive mind with queens at the center. Attacking the planet is the ultimate act of understanding.
Significance
His victory is the logical result of empathy, but it turns that empathy into a kind of murder.
Listening to the Hive-Queen

Listening to the Hive-Queen
The Hive-Queen communicates with Ender directly, showing him her species' perspective. For the first time, Ender truly knows the enemy he killed.
Context
The buggers built this tower from Ender's memories in a desperate attempt to connect across the gulf of language and death.
Significance
Ender's empathy finally reaches the dead, allowing him to speak for them and to begin his life as Speaker for the Dead.
during early Battle Room battles
while Ender commands Dragon Army
at the moment of the final revelation
the final battle
inside the tower on the colony world