That's why it's essential to keep a box of…

That's why it's essential to keep a box of mental tools close at hand, something you can turn to again and again. Mental tools make it possible to see the world more objectively and act sensibly in the long-term.

— from The Mind in the Cockpit

In the book

Insight favors the prepared mind, coming to the one who has already done the patient work and is now, at last, at rest; and much of clear thinking is subtraction, since knowing what to leave out matters every bit as much as knowing what to focus on. Keep a box of mental tools close at hand for all of this, and hold your thinking to its purpose: my thinking, William James said, is first and last and always for the sake of my doing — a mind that only spins is not thinking, it is idling. And learn to see a thought for what it actually is, because studied closely even a tormenting one is merely a temporary appearance of words passing through, neither a fact nor you. — The Mind in the Cockpit

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