I have been in sales for several years and I've learned many important things I use everyday. How to negotiate, the power of the takeaway, and how to see buying

I have been in sales for several years and I've learned many important things I use everyday. How to negotiate, the power of the takeaway, and how to see buying signs. But the most important thing I've learned by far is skepticism. Prior to my first sales job, I took people at their word. I thought people said what they meant and I was taken advantage of several times as a result. Now I understand that not everyone in the world has good intentions. It's a very important lesson and I'm glad I didn't have to learn it the hard way.