<p>根据下面资料,回答40-42题<br/>Ron was an engineer.He planned a change and tried the new job of teaching kids how to swim.Ron´s easy manner soon made him a full-time employee at the swim school.<br/>Now,the 40hours he works a week takes in weekends,early mornings and late afternoons.He earns around 25%less than he did in engineering.But,at 49,he says he has never been happier."I´ve had a drop in pay,but I´ve cut back on spending,too.I seldom drive to work so don´t have to pay as much for petrol(汽油).I don´t drink as much.I go walking in my lunch break and I´ve lost 20kilos.I love going to work.The whole family is a lot happier."<br/>When one of his brothers called,offering to help him find "a real i oh",he answered,"I don´t care.I know what I´m doing is good."<br/>He admits it was fearful making such a big change when there was the mortgage(分期付款)to pay and kids to clothe and feed,but in the end he feels it is a simple choice."If you´re in a job you don´t like,get out.Money´s not everything.If you don´t like it,change—find something you´re going to be happy with."</p>
What´s Ron´s advice to the readers?()