The strength of a response tendency depends on the amount of reinforcement received.
Mathematics is not a spectator sport; you have to play to understand.
唯一能战胜厄运的是努力工作。
道气常在天地内外运行流转,之所以看不见,是因为它极其清微。
真相并不总是美丽的,但寻找真相的过程是。