hoc opus, hic labor est
Latin quotation from Virgil
hoc opus, hic la·bor est
| \ hōk-ˈȯ-ˌpu̇s ˌhēk-ˈlä-ˌbȯr-ˈest
\
\
Definition of hoc opus, hic labor est
: this is the task, this is the hard work : this is the hard part