The most important thing a woman can do for her children is to love their father.
农业的真正价值不仅在于收获,还在于我们为子孙后代留下的遗产。
The unity of mathematics is not imposed but discovered.
教育的艺术必须从教育的科学中汲取其法则。
解析:事情做得成功了,就引身退去,这是自然的道理。