试管婴儿的研究是出于帮助不孕夫妇的愿望。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
The path to lower emissions requires a mix of solutions, including efficiency improvements, carbon capture, and alternative energies.
We are all haunted by the ghosts of our own pasts, and sometimes, by the ghosts of others.
一本书是通往其他生活和其他世界的窗口。
衡量我们行业成功的真正标准将是我们如何平衡经济增长与环境管理。
Design without functionality is art, but design with functionality changes lives.