在网球中,心态是最重要的。
The mind is the most important thing in tennis.
The world is full of chaos, but within that chaos, there is beauty.
The function of mental processes is to mediate between the needs of the organism and the demands of the environment.
The natural and moral world is the two-fold object of man's rational care.
无产阶级是普遍的阶级,他们的根本锁链是可以破裂的阶级。
力的统一不仅是数学上的梦想,更是物理上的必然。
I don't believe in eternity, but I believe in the trace.