The interplay between pure and applied mathematics is where true innovation happens.

Great wits are sure to madness near allied, and thin partitions do their bounds divide.

深刻沉着、忠厚笃信，是第一等的禀赋；直率开朗、豪迈雄健，是第二等的禀赋；明智聪慧、能言善辩，是第三等的禀赋。