The famous sayings of celebrities in practice are as follows:

Only real life can learn, only real life can teach people, and only real life can produce social thoughts. -Qu Qiubai; Seeing is believing. -Ban Gu; And then know, and then difficult. -Wei Yuan; Governing this device must require it to play a role. It's useless to wake up in your heart and say it on paper without learning it from yourself. -Yan yuan

how can (such a person) be useful if he insists on virtue but does not carry it forward and believes in morality but is not loyal enough? How can it be considered useless? Only practice can overcome the mistakes of experience. -Ba people; If you just read aloud, read poems and recite scriptures, even if you can read countless articles, it is just parroting and so on.

It must be practice and practical life experience that taught him such profound theories. -Shakespeare; Since ancient times, sage's words have been studied, and practice is the first priority, followed by knowing words. -Lin Xiyuan; Theories that can't stand the test of practice are useless and even harmful. -Tao Zhu

Theory is turning into practice. Theory is energized by practice, revised by practice, and tested by practice. -Lenin; If you want to have knowledge, you have to take part in the practice of changing reality. If you want to know the taste of pears, you have to change them and eat them yourself. -Mao Zedong

People use cognitive activities to understand things and practical activities to change things; Use the former to master the universe and use the latter to make the universe. -Croce; A knowledgeable person who doesn't practice is equal to a bee who doesn't make honey. -Sadie; If you treat it, you must seek its use. -

just a theoretical proof can move me more than fifty facts. -Diderot; How can a person know himself? Not by thinking, but by practice. -Goethe; All true knowledge originates from direct experience. -Mao Zedong; What you hear is not as good as what you see, what you see is not as good as what you practice, and what you practice is not as good as what you distinguish by hand. -Liu Xiang