我的语言的界限即是我的世界的界限。
The limits of my language mean the limits of my world.
The highest task of education is to develop in the individual a sense of responsibility towards humanity.
Freedom would be not to choose between black and white but to abjure such prescribed choices.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
发球是网球中最重要的一击。
How wisely ruling is described.