Peace is not free, it requires constant effort to maintain.
A financial crisis is often a self-fulfilling prophecy driven by panic.
学习数学的最好方法就是做数学。
银行不是当铺,银行是信用中介。
"In the quantum realm, the observer is not just a passive spectator but an active participant in the unfolding of reality."
Music is the universal language of mankind.