Learn Everyday

Sometimes inflexibility is a good thing and important to have in your approach. It helps save the brain some "Decision Fatigue".  Taking a pledge is one example. E.g. taking a pledge to not drink coke or not eat chocolate. The mind does not have think in this case.  Another example - I will only eat one thing in the breakfast. Or I will always wear the same type of clothes (e.g. jeans and black shirt) when I go out. 

This one is from the book Thinking Fast and Slow. We often think that when we use big, complex words, specially during writing — then it will impress the reader. However, studies have shown that using heavy words instead of simple ones — makes you less credible. Quoting from the book: “If you care about being thought credible and intelligent, do not use complex language where simpler language will do. My Princeton colleague Danny Oppenheimer refuted a myth prevalent among undergraduates about the vocabulary that professors find most impressive. In an article titled “Consequences of Erudite Vernacular Utilized Irrespective of Necessity: Problems with Using Long Words Needlessly,” he showed that couching familiar ideas in pretentious language is taken as a sign of poor intelligence and low credibility.”