人生苦短,必须快乐。
Life is too short to be anything but happy.
如果我们中的任何天主教徒,没有必要的科学知识,将科学审查显示为错误的东西作为教条提出,我们信仰的真理就会在异教徒中成为笑柄。
I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
Man can only be free through mastery of himself.