Påtvungen kunnskap blir aldri sjelens varige eie.
Fra dialogen Staten (ca. 377 - 386 f.v.t.).
Knowledge which is acquired under compulsion obtains no hold on the mind.
(Socrates:) And, therefore, calculation and geometry and all the other elements of instruction, which are a preparation for dialectic, should be presented to the mind in childhood; not, however, under any notion of forcing our system of education.
(Glaucon:) Why not?
Because a freeman ought not to be a slave in the acquisition of knowledge of any kind. Bodily exercise, when compulsory, does no harm to the body; but knowledge which is acquired under compulsion obtains no hold on the mind.