Constraints on $m_s$ and ${ϵ}^{\mathrm{\prime }}\mathrm{/}ϵ$ from Lattice QCD

Results for light quark masses obtained from lattice QCD simulations are compared and contrasted with other determinations. Relevance of these results to estimates of ${ϵ}^{\mathrm{\prime }}\mathrm{/}ϵ$ is discussed.