I have always said that everyone is in sales. Maybe you don't hold the title of salesperson, but if the business you are in requires you to deal with people, you, my friend, are in sales.

Zig Ziglar
Profession: Author
Nationality: American
Some suggestions for you :
Why settle for the ‘get by' when in the long run the good costs less?
You've got to be before you can do, and do before you can have.
Failure is an event, never a person; an attitude, not an outcome.
Anything worth doing is worth doing poorly--until you can learn to do it well.
Failing is an event, not a person. Yesterday ended last night.