"The past is a foreign country; they do things differently there."
A sense of crisis should always be maintained.
Mathematics is the language in which the universe is written.
With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.
量子傅里叶变换是许多量子算法的关键组成部分。