心灵进化以满足实际需求。
我只是努力保持一致性，每天坚持训练。
People who treat other people as less than human must not be surprised when the bread they have cast on the waters comes floating back to them, poisoned.
The causal model is the key to making sense of the world.
El escritor debe ser un testigo de su tiempo, un cronista de la realidad.