The mind evolves to meet the challenges of existence.
心灵进化是为了应对存在的挑战。
——《我的回忆》（1911年11月中旬）
The most important thing is to tell a story that resonates with people.
In the world of cryptography, the only secure system is the one that is never connected to any network.
Failure is not scary; what's scary is losing the ability to learn from it.