The first step in education is to know the child.
教育的第一步是了解孩子。
The advancement of mathematics is due to those who are driven not by the desire for application but by the joy of discovery.
我们的科学力量已经超过了我们的精神力量。我们有导弹，但我们的人类道德方向已经偏离。
释义：只有内心平和、沉稳，智慧深邃且勇敢沉着，才能成就伟大的事业。
Remember, if you ever need a helping hand, you'll find them at the end of each of your arms.