20 Things Smart People Don't Do

1. They don’t overlook the possibility to save money
2. They don’t heavily rely on others
   
3. They don’t act irresponsibly
4. They don’t feel defeated just because they need to reevaluate their convictions
   
5. They don’t dwell on their errors
   
6. They don’t permit their past to hold them back
7. They don’t rely on good luck to solve their problems
8. They don’t neglect important aspects of their business
9. They don’t hesitate to learn from their mistakes
10. They don’t give up on their ideas just because other people don’t agree with them
    
11. They don’t make strong remarks that can make them look weak in the future
12. They don’t lose the opportunity to broaden their experience
13. They don’t know how to back off from a good cause
14. They don’t waste the potentials of their gadgets
15. They don’t overestimate their abilities
16. They don’t make redundant enemies
17. They don’t allow their pride to get in the way
18. They don’t put all the eggs in one basket
19. They don’t lie to themselves that everything will be easy
20. They don’t take unnecessary risks

source : http://www.lifehack.org/articles/productivity/20-things-smart-people-dont.html