Luck is of little moment to the great general, for it is under the control of his intellect and his judgment.
LivyThe study of history is the best medicine for a sick mind; for in history you have a record of the infinite variety of human experience plainly set out for all to see; and in that record you can find yourself and your country both examples and warnings; fine things to take as models, base things rotten through and through, to avoid.
Livy