Teachers must have a healthy body, the skills of a farmer, the mind of a scientist, the interest in art, and the spirit of social reform.
教师必须具有健康的体魄,农人的身手,科学的头脑,艺术的兴味,改革社会的精神。
The language of mathematics is universal, transcending cultural and linguistic barriers.
在科学中,我们必须接受我们最珍视的理论可能是错误的这种可能性。