Sustainable quarrying isn't an option; it's our obligation to future generations.
I think the best role models for women are people who are fruitfully and confidently themselves, who bring light into the world.
有效性幻觉是一种认知偏差，描述了我们倾向于对自己的判断准确性过度自信。
每个物体都有一个等待被讲述的影子故事。
There can be no permanent progress in the battle against hunger until the agencies that fight for increased food production and those that fight for population control unite in a common effort.