The strength of liberal democracy lies in its ability to self-correct and reform.

"The essence of mathematics lies in its freedom."

"To write is to resist the erosion of time."

过度捕捞是短视行为，我们必须为子孙后代留下丰饶的海洋。

故意去辞让官爵俸禄，以此来沽名钓誉，还不如根本不去辞让。