人心似水，民动如烟。
形容人心难以捉摸，民众的行为像烟一样飘忽不定。
In times of adversity and change, we really discover who we are and what we're made of.
We are all just echoes of something that once was.
The greatest thing to be achieved in advertising, in my opinion, is believability, and nothing is more believable than the product itself.
在桂林学界迎会的演说，1922年1月22日
真理永远存在于简单之中，而不存在于事物的多样性和混乱之中。