"Change is the only constant in the universe."
即使鬼神不存在,这也可以用来聚集众人来欢乐,使得邻里亲近。 
The deepest problems in mathematics often arise from the simplest questions.
Memory is the bridge between the past and the future.
数学不是关于数字、方程、计算或算法的:它是关于理解的。
Collaboration across industries is the key to solving complex environmental challenges.