Nature wants children to be like children before they are adults.
大自然希望儿童在成人以前就要像儿童的样子。
我必须谈谈恐惧。它是生命唯一的真正对手。只有恐惧才能击败生命。
The invention of the cotton gin was the result of necessity and observation.
We must consider the environmental impact of every technological advancement.