创造出前所未见的东西是最伟大的挑战。
To create something that's never been seen before is the greatest challenge.
写作是一种生活方式,一种存在于世界的方式。
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.
The best way to learn mathematics is to do mathematics.