在数学科学中,比其他任何学科都更常见的是,那些一度最抽象、似乎远离一切实际应用的真理,在下一个时代会成为深刻物理研究的基础,并最终体现在某些实用发明中。
"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."
"We are all, in some way, exiles from ourselves."