To write is to confront the ghosts of memory.
We must design for the human experience, not just for efficiency.
数学家的工作大多是孤独的追求,但它建立在许多其他人的工作之上。
翻译:事物的增减盈亏,都是随时间的变化而变化的。
Psychology must be based on facts, not hypotheses.