计算安全不仅仅是建立防护墙，而是要理解威胁的全貌。
Security in computing is not just about building walls, but about understanding the landscape of threats.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
If you don't fail at least 90 percent of the time, you're not aiming high enough.
儿童并非弱者，他们有足够的智慧。
系统辨识的挑战不仅在于拟合数据，还在于提取有意义且可推广的模型。
一个国家的真正财富来自于它的土壤。