形式化方法不是银弹,但它们是追求可靠系统的重要工具。
煤炭的未来在于平衡环境责任与能源需求。
人人都值得爱,除了自以为值得的那个人。
I want to stand as close to the edge as I can without going over. Out on the edge you see all kinds of things you can't see from the center.