Sustainability isn't an option—it's a necessity for the future of our industry.

The spread of liberal democracy and the integration of the world economy have created a situation in which the only legitimate form of government is one that is based on popular sovereignty and respects basic human rights.

I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.

我一直知道自己会变得富有，我一分钟都没有怀疑过。