子曰：“贤哉，回也！一箪食，一瓢饮，在陋巷，人不堪其忧，回也不改其乐。贤哉，回也！
【译文】 孔子说：“颜回真贤德！一篮饭，一瓢水，在陋巷，人人都愁闷，他却乐在其中。颜回真贤德！
除非你决定如此，否则你不会被困在原地。
Afghanistan is the land of my past, the place where I had laughed and cried, but it was no longer my home.
The greatest theorems are those that reveal hidden connections.
孩子们喜欢安静练习与自由选择。
The pain you feel today will be the strength you feel tomorrow.
He knew that the world was made for men and that men were made to look at it.