For politics ought to be the part-time profession of every citizen who would protect the rights and privileges of free people and who would preserve what is good and fruitful in our national heritage. Politics must be the concern of every citizen who wants to see our national well-being increased and our international leadership strengthened. In that combined sense, politics is the noblest of professions. In the ranks of that kind of politics, every American should be enrolled.

Dwight David Eisenhower (1890-1969) American general, US President (1953-61)

Speech, Republican Lincoln Day Dinners (28 Jan 1954)
    (Source)

Often paraphrased: "Politics ought to be the part-time profession of every citizen who would protect the rights and privileges of free men."

The speech was filmed for the Republican National Committee and distributed to state and local committees to be shown at the Lincoln Day dinners.