Doubt

Doubt is your strongest weapon, yet you don't use it.

You seem so sure of your knowledge.

You seem so sure of your relationships.

You are so sure that you are a good person.

You are so sure you comprehend the underlying philosophy behind morals.

You are so sure you want and like that advertised product.

What you are unsure of is life. Of your own freedom. Of your true nature. And your own immortality.