1, if a person tries his best to think that I can't do it, then he can't do it. Chernyshevski

There is no end to the bold activities of science, and there should be no end. Gorky

What is right in theory must be effective in practice. -Kant

A person can learn to skate only after waddling like a fool. -Bernard Shaw

Practice and practical life experience must have taught him such a profound theory. -Shakespeare

6. Theories that can't stand the test of practice are useless and even harmful. mould

7. Action is Laozi, knowledge is his son, and creation is his grandson. -Tao Xingzhi

8, a person, only in practice, ability to know their own ability. -Little seneca.

9. If a person doesn't do it in a down-to-earth way, everything he hopes will come to nothing. -Molova

10, there is no natural talent in the world, and talent must be tempered. Chernyshevski

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

13, 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 eat them yourself. Mao Zedong