I wouldn't say 'most' people are prone to negativity. I think it's probably that most people allow negativity to color their thinking, depending on circumstances, but I also believe most people make the necessary efforts to return to positive thinking as quickly as possible.
Zig ZiglarI'm not gonna give up, shut up, or let up, until I'm taken up... as a matter of fact, I'm just getting warmed up.
Zig ZiglarWhen you do more than you're paid for eventually you will get paid for more than you do. This is a basic truth that also applies to Business, Sales or anything you do. Whatever your endeavor always provide more service than you get paid for and you will develop a reputation that will separate you from the rest.
Zig Ziglar