One of the best book quotes about mental toughness
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Wemmick was up early in the morning, and I am afraid I heard him cleaning my boots. After that, he fell to gardening, and I saw him from my gothic window pretending to employ the Aged, and nodding at him in a most devoted manner. Our breakfast was as good as the supper, and at half-past eight precisely we started for Little Britain. By degrees, Wemmick got dryer and harder as we went along, and his mouth tightened into a post-office again. At last, when we got to his place of business and he pulled out his key from his coat-collar, he looked as unconscious of his Walworth property as if the Castle and the drawbridge and the arbour and the lake and the fountain and the Aged, had all been blown into space together by the last discharge of the Stinger.