The laws of physics are universal, but our understanding of them is constantly evolving.

保卫国家政权，是那些君主和臣子等享受俸禄的人谋划的事；保卫整个天下，即使是地位低微的普通百姓也有责任参与。

Positive emotions are not trivial luxuries, but instead may be critical necessities for optimal functioning.

The great tragedy of life is not that men perish, but that they cease to love.

The healthy development of financial markets requires joint efforts from all parties.