To do mathematics is to engage in an act of discovery and conjecture, intuition and inspiration.
最有力的作品是那些挑战我们对现实认知的作品。
可持续发展不再是可选项;它是任何希望在未来蓬勃发展的企业的必需品。
Technology is not just a tool. It can give learners a voice that they may not have had before.