Some people are quoting President Eisenhower to express their support of public sector unions. As I've said over and over again, there are major differences between public and private sector unions. To compare them together as a unified, single entity is foolish, and quoting President Eisenhower in support of public sector unions is beyond foolish. Why? It wasn't until John F. Kennedy was president that government workers were allowed to organize--which is after President Eisenhower's presidency.
In any case, here are some interesting excerpts from President Eisenhower's 1955 speech to the AFL/CIO:
The second principle of this American labor philosophy is this: the economic interest of employer and employee is a mutual prosperity. Their economic future is inseparable... The American worker strives for betterment not by destroying his employer and his employer's business, but by understanding his employer's problems of competition, prices, markets. And the American employer can never forget that, since mass production assumes a mass market, good wages and progressive employment practices for his employee are good business...
The Class Struggle Doctrine of Marx was the invention of a lonely refugee scribbling in a dark recess of the British Museum. He abhorred and detested the middle class...[L]abor relations will be managed best when worked out in honest negotiation between employers and unions, without Government's unwarranted interference.
More from President Eisenhower's December 5, 1955 speech here.