Don’t be afraid to fail. Be afraid not to try.

网络的价值与系统连接用户数量的平方成正比。

Reason is， and ought only to be the slave of the passions， and can never pretend to any other office than to serve and obey them.

Security is not a product, but a capability.

就算你要杀人,礼貌也伤不着你。

理解问题是解决问题的一半。

解读：不劳而获、投机取巧所得快乐转瞬即逝，唯有持续付出汗水与心血，攻克难题、实现目标，由此产生的快乐才扎实、长久，激励踏实奋斗。