It has been said by some physicians, that life is a forced state. The same may be said of freedom. It requires efforts, it presupposes mental and moral qualities of a high order to be generally diffused in the society where it exists. [John C. Calhoun, speech, U. S. House of Representatives, Jan. 31, 1816]
[F]reedom is only truly freedom when it appears against the background of an artificial limitation. [T. S. Eliot, “Reflections on 'Vers Libre'” ]
Freedom fighter 经1903年证明(原指古巴). Freedom-loving (adj.) 是1841年的. Freedom-rider 是1961年记载的, 指美国的民权活动家试图整合公交线路.