孩子是最苛刻的观众,但也是最值得的。
The secret to success? There is no secret—just hard work and persistence.
My legacy is to be the voice of a generation and change the way people think.
我不害怕死亡,我害怕不去尝试。
可持续性不再是可选项;对于任何想在21世纪蓬勃发展的企业来说,它都是必需品。
一个测量可用的常识:手臂伸直两测指尖的距离就是你的身高。
Mathematics is the most beautiful and most powerful creation of the human spirit.