I think that one should recognize the reality even when one doesn't like it; indeed, especially when one doesn't like it.
我们最甜美的歌是那些讲述最悲伤思想的歌。
Every mathematical problem is a window into a new world of understanding.
我们必须拥抱新技术和新理念,否则将在快速变化的能源格局中落后。