_notiones animo (menti) insitae, innatae_—innate ideas.
_intellegentiae adumbratae_[1] or _incohatae_ (De Leg. 1. 22.
59)—vague, undeveloped ideas.
_notionem_ or _rationem alicuius rei in animo informare_ or _animo
concipere_—to form a conception, notion of a thing.
_absolutus et perfectus_—absolutely perfect.
_omnibus numeris absolutus_ (N. D. 2. 13)—perfect in every detail.
_ad summum perducere_—to bring to the highest perfection.
_perficere et absolvere_—to bring to the highest perfection.
_ad perfectionem, (ad summum) pervenire_—to attain perfection.
_absolutio et perfectio_ (not _summa perfectio_)—ideal perfection.
_cogitatione, non re_—ideally, not really.
_undique expleta et perfecta forma_—an ideal.
_species optima_ or _eximia, specimen_, also simply _species,
forma_—an ideal.
_comprehensam quandam animo speciem (alicuius rei) habere_—to have
formed an ideal notion of a thing.
_singularem quandam perfectionis imaginem animo concipere_—to conceive
an ideal.
_imaginem perfecti oratoris adumbrare_—to sketch the ideal of an orator.
_civitas optima, perfecta Platonis_—Plato's ideal republic.
_illa civitas Platonis commenticia_—Plato's ideal republic.
_illa civitas, quam Plato finxit_—Plato's ideal republic.
[1] _adumbrare_ is a technical term of painting = to make a sketch,
outline of an object; then metaphorically, to merely hint at a thing.
Its opposite is _exprimere_, technical term of sculpture,
=figuratively, to represent exactly, clearly. It never has the simple
meaning "to express."