Behind every technological breakthrough is the accumulation of countless failures.

Agriculture is the foundation of manufacture and commerce.

Only by continuous learning can we make continuous progress.

I strive to be a positive force in the world, through my work and through my actions.

反射是神经活动最简单和最常见的形式。

当你停止学习的那一刻，你就停止了成长。

今天不努力劳动耕种，明天就没有财富货物。