We can come to look upon the deaths of our enemies with as much regret as we feel for those of our friends, namely, when we miss their existence as witnesses to our success.

Summary

This quote suggests that the extent of our regret for the death of our enemies can be comparable to the sorrow we feel for losing our friends. However, this regret is not rooted in sympathy or compassion, but rather in the absence of their presence as witnesses to our accomplishments. It implies that our enemies, by acknowledging and challenging our successes, play an unintentional role in validating our achievements. Hence, their absence creates a void that can cause remorse.