Don’t dwell or needlessly complicate. Be here. Be all of you.

If you wish to improve, be content to appear clueless or stupid in extraneous matters.

Humans were always far better at inventing tools than using them wisely.

The sweet spot of desire occurs at a 50/50 split between success and failure.

Instinctively turning to others for comfort when stressed makes people stronger and more adaptive. Even if they’ve been shamed by an unresponsive parent for needing attention, their emotional needs show that their healthy mammalian instinct for seeking comfort is working well.

The most important thing is being aware of the importance of risk.

High performers understand that they don’t have to trade speed for stability or vice versa, because by building quality in they get both.

Our research shows that building security into software development not only improves delivery performance but also improves security quality. Organizations with high delivery performance spend significantly less time remediating security issues.

Mutual emotional responsiveness is the single most essential ingredient of human relationships.

Few companies have the discipline to discover their Hedgehog Concept, much less the discipline to build consistently within it. They fail to grasp a simple paradox: The more an organization has the discipline to stay within its three circles, the more it will have attractive opportunities.