However, Smart did not only write about gardens and vegetation, and his focus on his cat "Jeoffry" is widely known and his focus on nature connects him to those mistreated and neglected by 18th-century society. The first fragment of "Jubilate Agno" is a poetic "Ark" that pairs humans with animals in order to purify all of creation. The whole work relies on his extensive background in botany and his knowledge of taxonomy. Smart actively participated in the 18th-century taxonomy systems established by Carl Linnaeus; however, Smart is mythologising his view of nature and creation when he adds information from Pliny the Elder into his work.