If you have lost the radio beam, then guide yourself by the sun or the stars.
(By the North Star at night, and in daytime by the compass and the sun.)
Should the sky be overcast and there are neither stars nor a sun, then steer by dead reckoning.
If the wind and direction and speed are not known, then trust to your wits and your luck.
Do you follow me? Do you understand? Or is this too difficult to learn?
But you must and you will, it is important that you do,
Because there may be troubles even greater than these that I have said.
Because, remember this: Trust no man fully.
Remember: If you must shoot at another man squeeze, do not jerk the trigger.
Otherwise you may miss and die, yourself, at the hand of some other man's son.
And remember: In all this world there is nothing so easily squandered, or once gone,
so completely lost as life.
I tell you this because I remember you when you were small,
And because I remember all your monstrous infant boasts and lies,
And the way you smiled, and how you ran and climbed, as no one else quite did, and how you fell and were bruised,
And because there is no other person, anywhere on earth, who remembers these things as clearly as I do now.