A teacher 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。
In the midst of winter, I found there was, within me, an invincible summer.
The best dairy products come from a commitment to excellence at every stage of production.《Dairy Leadership》
Every barrel of oil we produce must be the most responsibly produced barrel possible.