一个国家制度的强度不仅在于其正式规则,还在于管理行为的非正式规范以及这些规范被人口内化的程度。
Rigor in proof is what separates mathematics from all other sciences.
Innovation is not about being different, but about truly addressing unmet player needs.
每个孩子都应该在他们读的故事中看到自己。