决定胜负的不是狗的体型大小，而是狗的战斗意志。
It's not the size of the dog in the fight, it's the size of the fight in the dog.
The city's poor are like the roots of a tree: unseen, but essential to its survival.
"The past is never dead. It's not even past."
未来并非在我们前方。它已经发生。
Sustainability is not a trend; it's a responsibility we all share.
数学不是沿着一条清理得很好的高速公路小心行进，而是一次进入陌生荒野的旅程，探险者常常会迷路。
万物起源的奥秘对我们来说是无法解决的；而我必须满足于做一个不可知论者。
即使有天下最容易生长的植物,晒它一天,又凉它十天,没有能够长大的。比喻做事一日勤,十日怠,没有恒心,是不会成功的。