朗兰兹纲领是对数学知识边界的挑战。
The Langlands program is a challenge to the boundaries of mathematical knowledge.
The city is the most complex work of art.
Every song has its own journey.
"You have to be able to confront reality but also inspire hope."
Diplomacy is not only about affairs between nations, but also involves global issues and the interests of all humanity.
减少思虑，来调养心气；减少性欲来调养肾气；不要妄动，来调养骨气；戒止嗔怒，来调养肝气；饮食素淡，来调养胃气；减少话语，来调养神气；博鉴群书，来调养胆气；顺应时令，来调养元气。