I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.
可持续性不仅仅是一个流行词，它是未来森林必须赖以发展的基础。
最糟糕的监狱不是有墙和栏杆的监狱，而是我们思想中的监狱。
Every technological breakthrough comes from the exploration and persistence of the unknown.