Happiness is really just about four things: perceived control, perceived progress, connectedness (number and depth of your relationships), and vision/meaning (being part of something bigger than yourself).

— Tony Hsieh, Delivering Happiness

Labels are ephemeral; they tell you about as much about the structure of a graph as the list of colors tells you about the structure of a painting.

— Richard J. Trudeau, Introduction to Graph Theory

The famous mantra “Move fast and break things” goes well beyond a surrender to the inevitability of acceleration, instead making acceleration an ethical imperative.

— Adrian Daub, What Tech Calls Thinking

As with other aspects of rapid development, you have to do a lot of things right to succeed, but you only have to do one thing wrong to fail.

— Steve McConnell, Rapid Development

To do great things, we need to be able to endure tragedy and setbacks.

— Ryan Holiday, The Obstacle Is the Way