“But suppose one doesn't quite know which one wants to put first. Suppose," said Harriet, falling back on words which were not her own, "suppose one is cursed with both a heart and a brain?""You can usually tell," said Miss de Vine, "by seeing what kind of mistakes you make. I'm quite sure that one never makes fundamental mistakes about the thing one really wants to do. Fundamental mistakes arise out of lack of genuine interest. In my opinion, that is.”

“It is one thing to make a mistake, and quite another thing not to admit it. People will forgive mistakes, because mistakes are usually of the mind, mistakes of judgment. But people will not easily forgive the mistakes of the heart, the ill intention, the bad motives, the prideful justifying cover-up of the first mistake.”

“If I had to give you one piece of advice it would be this: Don’t be intimidated by other people’s opinions. Only mediocrity is sure of itself, so take risks and do what you really want to do. Seek out people who aren’t afraid of making mistakes and who, therefore, do make mistakes. Because of that, their work often isn’t recognized, but they are precisely the kind of people who change the world and, after many mistakes, do something that will transform their own community completely.”

“Live all you can; it's a mistake not to. It doesn't so much matter what you do in particular so long as you have your life. If you haven't had that what have you had? … I haven’t done so enough before—and now I'm too old; too old at any rate for what I see. … What one loses one loses; make no mistake about that. … Still, we have the illusion of freedom; therefore don't be, like me, without the memory of that illusion. I was either, at the right time, too stupid or too intelligent to have it; I don’t quite know which. Of course at present I'm a case of reaction against the mistake. … Do what you like so long as you don't make my mistake. For it was a mistake. Live!”

“I think that to find out what love is really like, one must first make a mistake and then put it right.”

“Hello, little girl," he said, which was only his first big mistake. "I'm sure you want to know all about hedgehogs, eh?""I did this one last year," said Tiffany.The man looked closer, and his grin faded. "Oh, yes," he said. "I remember. You asked all those... little questions.""I would like a question answered today," said Tiffany."Provided it's not one about how you get baby hedgehogs," said the man."No," said Tiffany patiently. "It's about zoology.""Zoology, eh? That's a big word, isn't it.""No, actually it isn't," said Tiffany. "Patronizing is a big word. Zoology is really quite small.”