言论自由是自由的重要堡垒;它们共同繁荣和共同消亡。
We must understand our history through literature.
I'm not perfect, I don't claim to be, and I don't expect anyone to be.
The scientific study of behavior must be based on objective, measurable data.
我歌唱不是因为我看不见,而是因为我有声音。