Failure gave me an inner security that I had never attained by passing examinations. Failure taught me things about myself that I could have learned no other way. I discovered that I had a strong will, and more discipline than I had suspected; I also found out that I had friends whose value was truly above the price of rubies.
真相很少是纯粹的，也从不简单。
Mathematics is the art of asking the right questions and then finding their answers.
A poet can survive everything but a misprint.
The computer is a medium of expression, like a piano is a medium of expression.
不必担忧财富不多，只须担忧财富不平均，不必担忧人口稀少，只须担忧境内不安宁。……既来了，要使他们安家乐业。