[39] Ethic, pt. 2, prop. 13.
[40a] Ethic, pt. 1, coroll. 1, prop. 32.
[40b] Ibid., pt. 1, prop. 33.
[40c] Letter 56
[41a] Letter 21.
[41b] Letter 58.
[42a] Ethic, pt. 2, schol. prop. 49.
[42b] Ibid., pt. 4, coroll. prop. 63.
[43a] Ethic, pt. 5, or pp. 42.
[43b] “Agis being asked on a time how a man might continue free all his life; he answered, ‘By despising death.’” (Plutarch’s “Morals.” Laconic Apophthegms.)