Change is not merely necessary to life—it is life.

Music is a moral law. It gives a soul to the universe, wings to the minds, flight to the imagination, a charm to sadness, gaiety and life to everything. It is the essence of order, and leads to all that is good, just, and beautiful.

数学家的工作永远不会完成；总有新的问题需要探索，新的谜团需要揭开。

第十一条诫命是“你不可计算”或“你不可计算”-我忘记了。

可持续发展不仅仅是一种趋势，而是我们对后代的责任。