Your most unhappy customers are your greatest source of learning.
Don't think of people in the mass. That gives you a blurred view. Think of a typical individual, man or woman, who is likely to want what you sell.
The magic formula that successful businesses have discovered is to treat customers like guests and employees like people.
If you're competitor-focused, you have to wait until there is a competitor doing something. Being customer-focused allows you to be more pioneering.
The measure of usefulness of an early customer conversation is whether it gives us facts about our customers' lives and world views.
You aren't allowed to tell them what their problem is, and in return, they aren't allowed to tell you what to build.
You need to identify the specific underserved needs of your target customer that your product will address.
Success is not delivering a feature; success is learning how to solve the customer's problem.
We must learn what customers really want, not what they say they want or what we think they should want.