Franklin Roosevelt actually said...

the Executive Order of January 17, 1873, as amended, prohibiting, with certain exceptions, Federal officers and employees from holding state...

We must have well-educated and intelligent citizens who have sound judgment in dealing with the difficult problems of today.

It is their patriotic duty to continue the normal course of their education, unless and until they are called.

The term 'agencies' as used in this order shall include executive departments and independent establishments and corporations.