Final answer:
Kant considered Virtue as an unqualified good, as it is the only thing that has unconditional value, while happiness, wealth, and knowledge are all conditional.
Step-by-step explanation:
According to Kant, the unqualified good is Virtue. Kant argues that while happiness, wealth, and knowledge can be beneficial, they are all conditional and do not have unconditional value. Good will, which he defines as the decision to carry out moral duties, is the only thing that has unconditional value.