The past is a resource that can be used in the present.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something and that this thing must be attained.
投资更清洁的煤炭技术是对能源未来的投资。
The world is full of people who will tell you what you can't do. You don't need them. You already know what you can't do. What you need is someone to tell you what you can.