Related:

• There are two sides to every question. -- Protagoras (410 BC)
• Xenophanes was the first person who asserted... that the soul is a spirit.
  -- Diogenes Laertius (c. 200 AD) -- Xenophanes, iii...
• Anarcharsis, on learning that the sides of a ship were four fingers thick, said that "the passengers were just that distance from death.
  -- Diogenes Laertius (c. 200 AD) -- Anarcharsis, v...
• It takes a wise man to discover a wise man. -- Diogenes Laertius (c. 200 AD) -- Xenophanes, iii
• Plato was continually saying to Xenocrates, "Sacrifice to the Graces.
  -- Diogenes Laertius (c. 200 AD) -- Xenocrates, iii...
• Diogenes would frequently praise those who were about to marry, and yet did not marry.
  -- Diogenes Laertius (c. 200 AD) -- Diogenes, iv...
• Apollodorus says, "If any one were to take away from the books of Chrysippus all the passages which he quotes from other authors, his paper would be left empty.
  -- Diogenes Laertius (c. 200 AD) -- Chrysippus, iii...
• Time is the image of eternity. -- Diogenes Laertius (c. 200 AD) -- Plato, xli
• He used to teach that God is incorporeal, as Plato also asserted, and that his providence extends over all the heavenly bodies.
  -- Diogenes Laertius (c. 200 AD) -- Aristotle, xiii...