Related:

• In the time of Pythagoras that proverbial phrase "Ipse dixit" -- Diogenes Laertius (c.
  200 AD) -- Pythagoras, xxv...
• Pythagoras used to say that he had received as a gift from Mercury the perpetual transmigration of his soul, so that it was constantly transmigrating and passing into all sorts of plants or animals.
  -- Diogenes Laertius (c. 200 AD) -- Pythagoras, iv...
• Asked from what country he came, he replied, "I am a citizen of the world.
  -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi...
• When asked what wine he liked to drink, he replied, "That which belongs to another.
  -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi...
• Be of good cheer," said Diogenes; "I see land." -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi
• All things are in common among friends. -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi
• Among what he called his precepts were such as these
  Do not stir the fire with a sword. Do not sit down on a bushel....
• Bury me on my face," said Diogenes; and when he was asked why, he replied, "Because in a little while everything will be turned upside down.
  -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi...
• Once he saw a youth blushing, and addressed him, "Courage, my boy!
  that is the complexion of virtue." -- Diogenes Laertius (c. 200 AD) -- vi...