Do good when you can, and charge when you think they will stand it.
Other Mark Twain quotes:
Data is like garbage. You'd better know what you are going to do with it before you collect it.
Don't look at the world with your hands in your pockets. To write about it you have to reach out and touch it.
Never allow someone to be your priority while allowing yourself to be their option.
If you tell the truth, you don't have to remember anything.
Good friends, good books, and a sleepy conscience: this is the ideal life.
If it's your job to eat a frog, it's best to do it first thing in the morning. And If it's your job to eat two frogs, it's best to eat the biggest one first.
A half-truth is the most cowardly of lies.
Good decisions come from experience. Experience comes from making bad decisions.
Experience comes from bad judgment.
Don't just sit there and worry. Be proactive. Do something - anything - about what's worrying you so you can gain information, focus and control over the situation. I've suffered a great many catastrophes in my life. Most of them never happened.