Never do anything that is unpleasant to others.
Etiquette requires the presumption of good until the contrary is proved.
Unconsciousness of self is not so much unselfishness as it is the mental ability to extinguish all thought of one's self - exactly as one turns out the light.
Bread is like dressed, hats and shoes - in other words, essential!
To make a pleasant and friendly impression is not alone good manners, but equally good business.
If you are hurt, whether in mind or body, don't nurse your bruises. Get up, and light-heartedly, courageously, good-temperedly, get ready for the next encounter.