Study on wittgenstein's thought of language -games 并列题名：Study on wittgenstein's thought of language -games Study on wittgenstein's philosophy of mathematics Study on the literal thought of Qianlong and Jiaqing Study of poetics thought of “Shiren Yuxie” Study on the political thought of Thomas Hobbes Study on the religious thought of Mao Tse-tung Study on moral education thought of Marx and Engels Study of Hobsbawm's thought of national state Study on Amartya Sen's thought of justice