无限小在自然中的作用是无限大的。

The most important thing about a technology is how it changes the way we live.

Quality is remembered long after price is forgotten.

"A book is a mirror: if an ape looks into it, an apostle is unlikely to look out."

我宁愿接受一个聪明人最尖锐的批评，也不愿接受大众无知的赞同。

没有剑的契约只是空话，根本无法保护一个人。