一本好书的标准在于它能让读者感到不安的程度。
"The measure of a good book is determined by how much it disturbs the reader."
The goal of mathematics is not to solve problems, but to understand them.
It's so much darker when a light goes out than it would have been if it had never shone.
 我深切感到,关于造物这整个问题过于深奥,已超乎人类理智。
"El silencio entre las palabras a veces dice más que las propias palabras."