History teaches us that men and nations behave wisely when they have exhausted all other alternatives.

Related:

• Katz' Law: Men and nations will act rationally when all other possibilities have been exhausted.
  History teaches us that men and nations behave wisely...
• History teaches us that men and nations behave wisely
  once they have exhausted all other alternatives. ...
• Men and nations will act rationally when all other
  possiblities have been exhausted...
• Katz's Law:
  Men and nations will act rationally when all other...
• Man and nations will act rationally when all other possibilities have been exhausted.
  Katz'...
• Katz' Law:
  Man and nations will act rationally when all other...