永远不要低估微小改进的力量——它们会随着时间累积。
Never underestimate the power of small improvements—they compound over time.
I always prefer to believe the best of everybody; it saves so much trouble.
应该引导孩子通过自己的活动去发现真理。
The work of art is a trace of the invisible.
书籍是最安静、最恒久的朋友；它们是最易接近、最明智的顾问，也是最耐心的老师。