three sages; three enlightened men
Refers to a traditional grouping of three great spiritual or philosophical figures. The exact trio varies by context: often Buddha, Confucius, and Christ; or Laozi, Confucius, and Buddha; among others.
three masters; three most accomplished people
Used to refer to the three most outstanding individuals in a particular craft, trade, or field. The specific people depend on the context.
He is considered one of the three masters of Japanese painting.
The teachings of the three sages have influenced many people.