Mathematicians are like Frenchmen: whatever you say to them, they translate it into their own language, and forthwith it means something entirely different.
About all you can do in life is be who you are. Some people will love you for you. Most will love you for what you can do for them, and some won't like you at all.
My father said: "You must never try to make all the money that's in a deal. Let the other fellow make some money too, because if you have a reputation for always making all the money, you won't have many deals."