Answer:

Both excerpts, "Sonnet 43" by Elizabeth Barrett Browning and "A Red, Red Rose" by Robert Burns, depict passionate expressions of love.

Similarities between the two excerpts include:

1. Profound Love: Both poems express deep and enduring love for the subject. In "Sonnet 43," the speaker expresses love in various ways, counting the ways she loves, while in "A Red, Red Rose," the speaker proclaims his unwavering love, vowing to love until the seas run dry.

2. Intensity of Feelings: Both poems convey intense emotions associated with love. In "Sonnet 43," the speaker's love is described as reaching the deepest, broadest, and highest levels of the soul. Similarly, in "A Red, Red Rose," the speaker's love is profound and all-encompassing.

3. Romantic Imagery: Both poems utilize vivid imagery to evoke the intensity of love. "Sonnet 43" uses metaphors like "depth and breadth and height" and the idea of love reaching beyond sight and into the ends of being. "A Red, Red Rose" uses the imagery of a beautiful, blooming rose to symbolize the beauty and depth of love.

While both poems share these similarities in expressing love, they differ in their poetic form, structure, and style.