I'm the reason your sound won't echo.
我们对明天认识的唯一限制是我们今天的怀疑。
Quality is never an accident; it is always the result of intelligent effort.
It is because nations tend to stupidity and baseness that democracy is possible.
释义:广泛地学习,恳切地提问,从而增长知识;行为高尚,言语谨慎,从而修养自身。这是对学习与修养的重视。
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.