Software development takes immense intellectual effort. Even the best programmers can rarely sustain that level of effort for more than a few hours a day. Beyond that, they need to rest their brains a bit, which is why they always seem to be surfing the Internet or playing games when you barge in on them.
Joel SpolskyA user interface is well-designed when the program behaves exactly how the user thought it would.
Joel SpolskyEntrepreneurship boils down to the simple fact that a team of really smart people who can get things done are going to get smart, useful things done.
Joel SpolskySo if you want to get things done, you positively have to understand at any given point in time what is the most important thing to get done right now and if you're not doing it, you're not making progress at the fastest possible rate.
Joel Spolsky