It turns out that not every little girl grows up to be beautiful.
Simplicity is the highest form of wisdom.
An invention can be so valuable as to be worthless to the inventor.
儿童的进步不是取决于年龄,而是取决于能够自由地观看他周围的一切。
Nothing has really happened until it has been recorded.
最好的想法往往来自倾听——倾听农民、科学家和家庭的声音。