Quotations about:
    prettiness

It isn’t enough for poems to be things of beauty:
Let them stun the hearer and lead his heart where they will.

[Non satis est pulchra esse poemata; dulcia sunto
Et, quocumque uolent, animum auditoris agunto.]

Horace (65–8 BC) Roman poet, satirist, soldier, politician [Quintus Horatius Flaccus]

Epistles [Epistularum, Letters], Book 2, ep. 3 “Art of Poetry [Ars Poetica; To the Pisos],” l. 99ff (2.3.99-100) (19 BC) [tr. Palmer Bovie (1959)]
    (Source)

One of the most famous lines in the Ars Poetica.

(Source (Latin)). Other translations:

Not lore enough in Poesis, let them be sweetlye fynde,
And let them leade to where them liste the hearers plyante mynde.
[tr. Drant (1567)]

Tis not enough the labouring Muse affords
Her Poëms beauty, but a sweet delight,
To worke the hearers minds, still to the plight.
[tr. Jonson (1640); l. 140ff]

He that would have Spectators share his Grief,
Must write not only well, but movingly,
And raise Mens Passions to what height he will.
[tr. Roscommon (1680)]

'Tis not enough, ye writers, that ye charm
With ease and elegance; a play should warm
With soft concernment; should possess the soul,
And, as it wills, the listening crowd controul.
[tr. Francis (1747)]

'Tis not enough that Plays are polish'd, chaste,
Or trickt in all the harlotry of taste,
They must have passion too; beyond controul
Transporting where they please the hearer's soul.
[tr. Coleman (1783)]

'Tis not enough that poetry combine
All fancy's charms in every sounding line:
Empassion'd let her be, and melt at will
The soul to pity or with horror thrill.
[tr. Howes (1845)]

It is not enough that poems be beautiful; let them be tender and affecting, and bear away the soul of the auditor whithersoever they please.
[tr. Smart/Buckley (1853)]

Mere grace is not enough: a play should thrill
The hearer's soul, and move it at its will.
[tr. Conington (1874)]

Fine things won't make a drama: it must thrill
The hearers' souls, and sway them at its will.
[tr. Martin (1881)]

Nor is it enough that poems possess beauty in the construction. They must please and, in whatsoever direction they will, send there the feelings of the auditors.
[tr. Elgood (1893)]

Not enough is it for poems to have beauty: they must have charm, and lead the hearer's soul where they will.
[tr. Fairclough (Loeb) (1926)]

It is not enough for poems to be fine; they must charm, and draw the mind of the listener at will.
[tr. Blakeney; ed. Kramer, Jr. (1936)]

It isn't enough to make lines pretty; they must move,
and affect the hearer's soul exactly as the poet wants.
[tr. Fuchs (1977)]

Poems (oh)
can be (oh)
so beautiful
And (oh) so dull.
Poets need charm, too, to seduce our minds.
[tr. Raffel (1983 ed.)]

Sheer abstract beauty isn't enough in a poem;
Its language must so persuade the listener
And act upon his soul that he'll respond
As the poem intends.
[tr. Ferry (2001)]

Correctness is not enough in a poem; it must be attractive,
leading the listener's emotions in whatever way it wishes.
[tr. Rudd (2005 ed.)]

It’s not enough for poems to have beauty: they must have
Charm, leading their hearer’s heart wherever they wish.
[tr. Kline (2015)]