Every tree we plant today is a legacy for generations we'll never meet.
Graceful silence speaks more profoundly than empty words.
理论是灰色的,而生活之树常青。
"Home is not a place, it's a feeling."
"The only way to learn mathematics is to do mathematics."
解析:告诫人们要珍惜所得。
科学是一个不断学习和适应的旅程。