1, learning without thinking is useless, thinking without learning is dangerous;

2, see Xian Si Qi Yan, see Xian Si Qi introspection;

3, don't be angry, don't be angry, don't give up, give one corner instead of three, and it will no longer be.

A hundred schools of thought contend:

1, so there is no silicon step, no miles; If you don't accumulate small streams, you can't become rivers and seas;

2, just don't seek its benefits, I don't know its way regardless of its merits;

3. People are hard to learn. If they learn it, it will be easy for those who are in trouble. If you don't learn, it will be difficult for easy people.