A "judicious" person is likely to:

A judicious person is characterized by the ability to exercise good judgment and make thoughtful decisions based on careful consideration of the circumstances and potential consequences. This term implies wisdom, discretion, and prudence, suggesting that such a person weighs options appropriately and understands the nuances of a situation before taking action.

The other choices do not align with the meaning of "judicious." Making hasty decisions or acting without thinking indicates a lack of careful deliberation, which is the opposite of being judicious. Additionally, being excessively devoted to a principle suggests a rigidity or inability to adapt one's judgment to different contexts, contrasting with the flexibility and reasoned approach inherent in being judicious. Therefore, the correct choice accurately reflects the essence of the term in question.