Related:

• He who steals for others ends up being hanged for himself.
• Sometimes it is said that man cannot be trusted with the government of himself.
  Can he, then, be trusted with the government of others?" -- Thomas Jefferson (1743-1826)...
• He who knows others is clever; he who knows himself is enlightened.
  -- Lao-tzu, Chinese philosopher and founder of Taoism...
• He who knows others is wise. He who knows himself is enlightened. -- Lao Tsu
• Sometimes it is said that man cannot be trusted with the government of himself.
  Can he, then, be trusted with the government of others?...
• Depend on no man, on no friend, but him who can depend on himself.
  He only who acts conscientiously towards himself will act so towards others, and vice versa....
• He is not only dull himself, he is the cause of dullness in others. -- Samuel Johnso
• He is not only dull himself, he is the cause of dullness in others." Samuel Johnso