This poem is relatively short, and is in an older style where the poem indicates a kind of tale or advisory message.

Here is one literally on virtue by George Herbert:

Virtue George Herbert

Sweet day, so cool, so calm, so bright, The bridal of the earth and sky; The dew shall weep thy fall to-night, For thou must die.

Sweet rose, whose hue angry and brave Bids the rash gazer wipe his eye; Thy root is ever in its grave, And thou must die.

Sweet spring, full of sweet days and roses, A box where sweets compacted lie; My music shows ye have your closes, And all must die.

Only a sweet and virtuous soul, Like season'd timber, never gives; But though the whole world turn to coal, Then chiefly lives.