城市的穷人就像树的根：看不见，但对生存至关重要。
The city's poor are like the roots of a tree: unseen, but essential to its survival.
真相很少是纯粹的，也从不简单。
化学是一门具有创造自己研究对象的非凡能力的科学。
企业必须将公司的成功与社会进步重新联系起来。共享价值不是社会责任，不是慈善事业，甚至不是可持续发展，而是一种获得经济成功的新方式。它不在公司所做的事情的边缘，而是在中心。我们相信它可以引发下一次商业思维的重大转变。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
I don't follow the crowd, I lead it.
"Every act of creation is first an act of destruction."
The great ideological battles between liberalism and communism, or between democracy and authoritarianism, have been replaced by a general consensus on the desirability of liberal democracy.