A wise person or sage — someone with good judgment, insight, and experience who may give advice.
村の賢者に相談して助言をもらった。
I consulted the village sage and received advice.
彼はいつも冷静で、賢者のようだと言われる。
He is always calm and is said to be like a sage.
賢者の言葉を忘れないようにメモしておいた。
I took notes so I wouldn't forget the sage's words.