Many aspiring entrepreneurs dream up an idea, and then stick to it doggedly, either because its the only idea they have, or they find it technically interesting.
That resonates with me. People who stick to their ideas generally succeed, but you do not succeed by sticking to any idea per se.
Here's the full comment, and a link below.
Before you start your new company, figure out what your product is, then figure out who will buy it (I mean, who is the specific person in an organization that would need to make a purchase decision). Then, go talk to 2 or 3 of those people.
via reddit.com (permalink)