The past is always with us, for it feeds the present.
"The white space on a page is just as important as the marks you make on it."
计算安全不仅仅是建立防护墙，而是要理解威胁的全貌。
The ocean doesn't belong to us; we belong to the ocean.
如果用心一旦松散，那么万事都做不好。如果用心一旦粗疏，那么凡事不能聚精会神。用心一旦固执，凡事就不能见其本来面目。