PROGRAMMING:Learning without thinking is useless
Please write a program to display the famous words of Confucius on the screen.
####Input sample
```in
```
Note: no input.
####Output sample
```out
Learning without thinking is useless,
Thinking without learning is dangerous.
```
---
Tip: punctuation is Chinese full angle symbol.
answer：If there is no answer, please comment
####Input sample
```in
```
Note: no input.
####Output sample
```out
Learning without thinking is useless,
Thinking without learning is dangerous.
```
---
Tip: punctuation is Chinese full angle symbol.
answer：If there is no answer, please comment