George Washington
At the end of his second term, Washington retired for personal and political reasons, fatigued and disgusted with personal attacks, and to assure a truly contested presidential election could be held. He did not feel bound to a two-term limit, but his retirement ultimately set precedent. The two-term limit to the presidency was formalized with the 1951 adoption of the Twenty-second Amendment to the United States Constitution. Washington is often credited with setting the principal of a two-term presidency, but it was Thomas Jefferson who first refused to run for a third term on political grounds.
Presidency of Dwight D. Eisenhower
Eisenhower was the first U.S. president to be constitutionally limited to two terms under the 22nd Amendment. Voted Gallup's most admired man twelve times, he achieved widespread popular esteem both in and out of office. Since the late 20th century, consensus among Western scholars has consistently held Eisenhower as one of the greatest U.S. Presidents.