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To say something is to perform an action, and to perform an action is to do something with words.
解析:经常反省检查自己,不给私欲留空间。
The most important thing is to disturb the comfortable and comfort the disturbed.
我不是来讨人喜欢的,我是来被爱的。
物体的加速度与所受的合外力成正比,与物体的质量成反比。加速度的方向与合力的方向相同。
The beauty of science is that it allows us to see the world not as it is, but as it could be.