Aviation is fine as a sport. But as an instrument of war, it is worthless.
In tactics, action is the governing rule of war.
The fundamental qualities for good execution of a plan is first; intelligence; then discernment and judgment, which enable one to recognize the best method as to attain it; the singleness of purpose; and, lastly, . . . stubborn will.
One is defeated only when one accepts defeat.
Don't drown yourself in details. Look at the whole.
The unknown is the governing principle of war.