一个词的意义不是心智实体，而是社会实践。
The meaning of a word is not a mental entity， but a social practice.
Don’t wait until they tell you you are ready. The world might say you are not allowed to yet. I waited a long time in the world before I gave myself permission to fail. Please, Don’t even bother asking, don't bothering telling the world you are ready. Show it. Do it.
Understanding the computational complexity of learning problems is essential for developing efficient algorithms.
目标不是每次都正确，而是正确的次数比错误的次数多。
计算的未来不是由硬件决定的，而是由驱动它的算法决定的。