Zhou Wen's talent was having focus; it gave him extraordinary focus.
However, there were pros and cons to everything. Zhou Wen could quickly devote himself to everything he did. This made him learn everything faster than the average person. It wasn't easy for him to be distracted, so he was very difficult to obstruct.
On the contrary, due to his focus, Zhou Wen wasn't a person with a repertoire of feelings like the average person. He wasn't that sensitive, so it was very difficult for him to notice things regarding emotion.
To Zhou Wen's knowledge, defeating an enemy was similar to adding and subtracting. He would only consider the losses between him and his opponent.
In his calculations, killing his opponent was already the enemy's greatest loss.
However, Leng Zongzheng's words opened up a new world to Zhou Wen. Killing an opponent wasn't the greatest loss to the opponent.