2. Seeing is believing. —— Ban Gu
3, then know, then difficult. -Wei Yuan
4. To cure this instrument, it must be required to play a role.
5. I wake up in my heart and say that it is useless to talk on paper unless I learn from myself. —— Yan Yuan
7. Only practice can overcome the mistakes of experience. -Ba people
8. If you just read aloud, read poems and recite scriptures, even if you can read countless articles, it's just parroting and the like.
10. Since ancient times, learning the words of sages, practice is the first, followed by words. -Lin Xiyuan
1 1, the theory that can't stand the test of practice is useless and even harmful. mould
12, theory is changing into practice, theory is energized, revised and tested by practice. -Lenin
14, human beings know things with cognitive activities and change things with practical activities; Use the former to master the universe and use the latter to make the universe. -Croce
15, a knowledgeable person does not practice, that is, bees do not make honey. Sadie