能源安全是国家发展的命脉，我们必须坚定不移地推进油气勘探开发，保障国家能源供应。
Energy security is the lifeline of national development. We must unswervingly promote oil and gas exploration and development to ensure national energy supply.
教师必须为形成较好人类而献出一切。
The human capacity for care is not finite; the more we give, the more we have to give.
"What good is the warmth of summer, without the cold of winter to give it sweetness."