1Cicero, Works, Loeb Classical Library, Harvard University Press, 1969, vol. xvi, Book 9, viii.
2Cicero, Works, Loeb Classical Library, Harvard University Press, 1969, vol. xix, Aeademica Ⅰ, i.
3Ibid. vol. xix, AcademicaⅠ, iv.
4Ibid. vol. xix, Academica Ⅰ, v.
5Ibid. vol. xix, Academica Ⅰ, xii.
6Ibid. vol. xix, Academica Ⅱ, iv.
7Ibid. vol. xix, AcademicaⅡ, xxii.
8Ibid. vol. xix, Academica Ⅱ, xxxi.
9Ibid. vol. xix, AcademicaⅡ, xxxvi.
10Dillon, J. M. & Long, A.A. , eds. , The Question of Eclecticism : Studies in Later Greek Philosophy, University of California Press, Berkeley and Los Angeles, California, 1988, p. 38.
