[20.] Lowell's "Present Crisis."
[21.] Gomperz—"Greek thinkers," Page 59.
[22.] Schwegler's "History of Philosophy," Page 75.
[23.] Ibid—"History of Philosophy," Page 741.
[24.] Forbes—"Socrates" Page 191.
[25.] Denton Snyder—"History of Ancient European Philosophy," Page 248-249.
[26.] Zeller—"Socrates and the Socratic School," Page 167.
[27.] Denton Snyder—"History of Ancient European Philosophy," Page 234.
[28.] Forbes—"Socrates," Page 173.
[29.] Xenophon—"Memorabilia," Page 121-123.