Speech from the mouth can indeed motivate but also destroys. You also should avoid at least five expression that can destroy a career as reported from the following Inc.com.

I can not...

The word "can not" is a major killer of creativity and productivity of a person. For if the mind is preventing you from doing something, there will be no more things you can accomplish.

That's no way!

Blame, one of the expressions that can destroy a career. Despite the completion of an assignment method is slightly different to the way you do, avoid blaming others.

Impossible

In this world, nothing is impossible. Instilling such thinking is much better than to think things harder unlikely to be resolved. Limiting yourself with no expression may not lead you to success.

If we had more money ...

Businesses that hampered usually caused by financial problems. But that does not mean you have to spend money for the success of a business. It is precisely here your creativity is being tried to find a way out without the help of money.

The problem is...

Do not focus on the problem! The most important thing that you should look at it the solution of the problem. You'll just walk in place if often think about a problem without a solution.

That fifth expression that can destroy your career. Do not say or even think about it if you really want to succeed!