These are the excerpts from one of my favorite book by Dale Carnegie
RULE 1: If you want to avoid worry, do what Sir William Osier did: Live in “day-tight compartments”. Don’t stew about the future. Just live each day until bedtime.
RULE 2: The next time Trouble-with a capital T- comes gunning for you and backs you up in a corner, try the magic formula of Willis H. Carrier:
a. Ask yourself, “What is the worst that can possibly happen if I can’t solve my problem?”
b. Prepare yourself mentally to accept the worst-if necessary.
c. Then calmly try to improve upon the worst-which you have already mentally • agreed to accept.
RULE 3: Remind yourself of the exorbitant price you can pay for worry in terms of your health. “Business men who do not know how to fight worry die young.”
There is a famous puzzle. 9 dots arranged in a square, like this
Your job is to connect all of the dots using only 4 straight lines without lifting your hand off the paper, crossing each dot only once. The only way to do it is to extend at least one of the lines beyond the perimeter of the “box”.
This solution never occurs to most people. They see a box, and their thinking is limited by that.
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