生活中最好的东西是免费的。
The best things in life are free.
I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single political argument left.
In manufacturing, efficiency and environmental responsibility must go hand in hand.
科幻小说是世界历史上最重要的文学,因为它是思想的历史,是我们文明自我诞生的历史。