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：它是关于理解的。
The ethical implications of genetic modification must be carefully considered.
如果允许我们在这个世界上长生不老，试问谁愿意接受这件不吉祥的礼物？
The poor dream all their lives of getting enough to eat and looking like the rich. And what do the rich dream of? Losing weight and looking like the poor.