当有人真正倾听你而不对你进行评判，不试图为你承担责任，不试图塑造你时，感觉真是太好了！
When someone really hears you without passing judgment on you, without trying to take responsibility for you, without trying to mold you, it feels damn good!
The study of mathematics is a constant dialogue between the concrete and the abstract.
"Human behavior is the product of evolved psychological mechanisms that process information from the environment."
Abstraction is the key to managing complexity in large software systems.