Which lines from lord byron's "she walks in beauty" show that byron's subject is rich in kindness and grace?
she walks in beauty, like the night
of cloudless climes and starry skies;
and all that’s best of dark and bright
meet in her aspect and her eyes;
thus mellowed to that tender light
which heaven to gaudy day denies.
one shade the more, one ray the less,
had half impaired the nameless grace
which waves in every raven tress,
or softly lightens o’er her face;
where thoughts serenely sweet express,
how pure, how dear their dwelling-place.

One shade the more, one ray the less,

Had half impaired the nameless grace

Which waves in every raven tress,

Where thoughts serenely sweet express,

How pure, how dear their dwelling-place.

Explanation:

The below mentioned lines show kindness

One shade the more, one ray the less,

Had half impaired the nameless grace

Which waves in every raven tress,

Where thoughts serenely sweet express,

How pure, how dear their dwelling-place.

These lines defines the strength carried by a woman though being so soft is an exceptional parameter of internal beauty. In this stanza, the poet has praised  both her spiritual and intellectual beauty.

However in the stanza above this one, the author has tried to define and praise the exceptional physical beauty of the women.