科学的精神在于不断质疑和探索，它让我们永远保持对世界的好奇心。
The past is a shadow, always following, but never catching up.
"A good picture book is like a silent movie; it tells a story without words."
Freedom is not something that anybody can be given. Freedom is something people take, and people are as free as they want to be.
Quality means doing it right when no one is looking.
Every seed planted today is an investment in tomorrow's food supply.