旧梦是好梦,没有实现,但是我很高兴我有过这些梦。
我们必须始终将工人的安全和福祉置于首位。
Collaboration in mathematics is essential; no one can solve all the problems alone.
Either you repeat the same conventional doctrines everybody is saying, or else you say something true, and it will sound like it's from Neptune.