Clinging to your own thoughts and being closed to outside influences.
固执己见，与世隔绝
It can be hard to admit that what you thought or believed was not the best alternative. So you cling to your thoughts harder and harder and keep your mind closed. This makes it hard to improve and for instance to become more effective. Even really considering the possibility that you can change your life can be difficult in this position.
我们很难去承认自己的想法不是最佳选择，因此我们通常过于执着自己的想法，变得闭目塞听，而这会让你很难取得进步。在这种情况下，即使认真思考改变人生的可能性都会变得很难。
One solution, obviously, is to open up more. To open up and learn from the mistakes of others, from your own mistakes and from other sources like books. This is easy to say though. It can, as almost anything, be harder to do. One suggestion I have is to, like I said about the previous habit, realise the limits of what you know and the way you going about things. And then just try something new.
显然，解决方法之一就是打开心胸，开阔视野，从他人和自己的错误中汲取教训，从书籍等资源中获取知识。与任何事一样，这事说起来容易做起来难。正如前面所说，对此我的建议就是认识到你的知识领域毕竟是有限的，而你做事的方式也会存在不足。那么不妨就尝试一下新事物吧。