You're wise and bright so obviously you're going to make wise decisions too — sensible in every regard. In fact, when you make these very wise choices and judgment calls, your brain glows brightly.

賢明 is a formal word that is often seen in writing. It's commonly used to say how someone made a wise decision or sensible choice.

This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.