Arctic and only a street lamp, antarctic also has only; Light a lamp arcticly alone only person and his antarctic person of the same trade, live the life with idle slack ease: They work every year twice only.
北极仅有一盏路灯，南极也只有一盏；唯独北极的点灯人和他南极的同行，过着闲逸懒散的生活：他们每年只工作两次。
The study of black holes has revolutionized our understanding of space and time.
坚持是数学研究的关键，许多伟大的成果来自于长期的奋斗。
Economic policies should be evaluated based on their real-world impact.
"The best stories are the ones that make you feel something, that stay with you long after you've finished reading."
渔业的领导力意味着今天做出艰难的选择，这样后代就不必这样做。
永不，永不，永不屈服。