I found that the less I cared whether I spoke well or badly, the less badly I spoke, and gradually the nervous strain diminished almost to vanishing point. A great deal of nervous fatigue can be dealt with in this way. Our doings are not so important as we naturally suppose; our successes and failures do not after all matter very much.
Source: The Conquest of Happiness, 1930, chap.5: Fatigue<
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