All things Death claims. To perish is not doom, but law.

From Epigrammata: De Qualitate Temporis 7, 7 as quoted in L. De Mauri, Angelo Paredi, Gabriele Nepi, 5000 proverbi e motti latini, Hoepli Editore, 1995, p. 384 and Hubertus Kudla, Lexikon der lateinischen Zitate, C. H. Beck, 2007, p. 416. The full text can be found in Anthologia Latina I, fasc. 1 (Walter de Gruyter, 1982), ed. by D. R. Shackleton Bailey, p. 164. Harold Edgeworth Butler (Post-Augustan Poetry: From Seneca to Juvenal, Library of Alexandria, 1969, ch. 2, sec. 2) attributes De Qualitate Temporis to Seneca the Younger.