"The past is always tense, the future perfect."
過去總是緊張的，未來是完美的。
Every problem in mathematics has a solution; it's just a matter of finding the right path.
You can't change the past, but you can shape the future.
Life is too short to be anything but happy.
I am following nature without being able to grasp her.
國家一定要有直言進諫的臣子，上級必須有敢于提出反對意見的下級，議論國政的人不停止，各種不同政見的人相互辯論，才可以長久保存國家，使國家興盛強大。也就是說言論自由是民眾的基本權利，每個人都可以提出不同的政見，民眾有平等參與政治的權利。