Mathematics reveals its secrets only to those who approach it with pure love, for its own beauty.
数学只向那些纯粹出于对其美的热爱而接近它的人揭示其秘密。
水产养殖的未来在于循环水系统——它们将废物转化为机遇。
The spread of liberal democracy and the integration of the world economy are the two most important trends of the modern era.