Answer:
He was keenly interested in the construction of a new "federal city" along the banks of the Potomac River. Washington decided to leave public office after two terms as president. His action set a precedent to step down after eight years, followed by successive presidents until Franklin D. Roosevelt.
Mindful of the precedent his conduct set for future presidents, Washington feared that if he were to die while in office, Americans would view the presidency as a lifetime appointment. Instead, he decided to step down from power, providing the standard of a two-term limit.