So, to prevent fatigue and worry, the first rule is: Rest often. Rest before you get tired.

The chronic kicker, even the most violent critic, will frequently soften and be subdued in the presence of a patient, sympathetic listener— a listener who will be silent while the irate fault-finder dilates like a king cobra and spews the poison out of his system.

If you can be kind and considerate for one day, then you can be for another. It won't cost you a penny in the world. Begin today.

Why talk about what we want? That is childish. Absurd. Of course, you are interested in what you want. You are eternally interested in it. But no one else is. The rest of us are just like you: we are interested in what we want.

A smile is nature's best antidote for discouragement. It brings rest to the weary, sunshine to those who are frowning, and hope to those who are hopeless and defeated. A smile is so valuable that it can't be bought, begged, borrowed, or taken away against your will. You have to be willing to give a smile away before it can do anyone else any good. So if someone is too tired or grumpy to flash you a smile, let him have one of yours anyway. Nobody needs a smile as much as the person who has none to give.

Each nation feels superior to other nations. That breeds patriotism - and wars.

It isn’t what you have or who you are or where you are or what you’re doing that makes you happy or unhappy. It’s what you think of it. Two people may in the same place doing the same thing, and yet one may be miserable and the other happy. Why? Because of a different mental attitude.