1. Thou shalt always wear Tweed. No other fabric says so defiantly: I am a man of panache, savoir-faire and devil-may-care, and I will not be served Continental lager beer under any circumstances.
2. Thou shalt never not smoke. Health and Safety "executives" and jobsworth medical practitioners keep trying to convince us that smoking is bad for the lungs/heart/skin/eyebrows, but we all know that smoking a bent apple billiard full of rich Cavendish tobacco raises one's general sense of well-being to levels unimaginable by the aforementioned spoilsports.
3. Thou shalt always be courteous to the ladies. A gentleman is never truly seated on an omnibus or railway carriage: he is merely keeping the seat warm for when a lady might need it. Those who take offence at being offered a seat are not really Ladies.
4. Thou shalt never, ever wear Pantaloons de Nîmes. When you have progressed beyond fondling girls in the back seats of cinemas, you can stop wearing jeans. Wear fabrics appropriate to your age, and, who knows, you might even get a quick fumble in your box at the opera. [...]
The Chaps Manifesto