The language of mathematics is universal, transcending cultural and linguistic barriers.
数学语言是通用的,超越了文化和语言的障碍。
土地才是真正的客户,而不是支付费用的人。
比死亡更强大的是爱,而非理性。
I shall die again and again to know that life is inexhaustible.
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.