Friendship is the most precious wealth of life.
Ethics isn't a barrier to progress—it's a guide for responsible progress.
The past shapes the present, and the present shapes the future.
每一种化合物都必须有确定的组成,这可以用其元素的符号来表示。
The greatest danger to American agriculture is the loss of the family farm.
请看:世界上最重要且美好的事情是:人们并非一成不变,尚未定型——而是永远在变化之中。
生命中最美好的事物不是物品,而是人、地方、回忆和画面,是情感、瞬间、微笑和笑声。