一本书对孩子来说应该像一个朋友——令人安心、兴奋且充满惊喜。
每个挑战都是伪装的机会。
我们需要对互联网的安全保持警惕。
理性建筑不是理性的建筑,而是合理性的建筑。
The truth is not always what it seems, and sometimes it is better not to know it.
To be a good mathematician, you need to have both intuition and rigor.