The lifestyles of a small portion of legitimately rich Americans inflated the aspirations of the majority of Americans, whose incomes weren’t rising.

The real tragedy is that when the technician falls prey to the Fatal Assumption, the business that was supposed to free him actually enslaves him.

The emotional tail wags the rational dog.

The goal of creating learning milestones is not to make the decision easy; it is to make sure that there is relevant data in the room when it comes time to decide.

It’s my contention—and it’s the bedrock thesis of this book—that interpersonal behavior is the difference-maker between being great and near-great, between getting the gold and settling for the bronze.

By the time I went into business, the habit of intensive preparation had become second nature to me, and it proved to be a major competitive advantage.

The fastest gains are probably from moving your environment around to make it easier to do your tasks.

Whenever the constraint is broken it changes conditions to the extent that it is very dangerous to extrapolate from the past.’ Even the things that we put in place in order to elevate the constraint must be reexamined.

You are surrounded by a spiritual kingdom, always within reach of your inner self, waiting for you to recognize it.

All feelings are legitimate and are meant to lead to addressing, processing, and resolving in mindful ways.