It's good not only to realize that you can't please all of the people all of the time, but that you don't want to. There's a certain type of reader that you don't ever want to write for.
“Every soldier thinks something of the moral aspects of what he is doing. But all war is immoral and if you let that bother you, you're not a good soldier.”
“If you set as your goal to roll back the size of government, you have an obligation to answer the tough questions and show real courage, not just appeal to ideology. Treat the voters like adults.”