31.rome was not built in a day.伟业非一日之功（冰冻三尺，非一日之寒）
32.a man is as old as he feels.老不老，自己晓。
33.a single flower does not make a spring.一花独放不是春，百花齐放春满圆。
34.something is learned everytime a book is opened.开卷有益。
35.a sound mind in a sound body.健康的精神寓于健康的身体。
36.strike while the iron is hot.趁热打铁。
37.a still tongue makes a wise head.大智若愚（寡言者智）
38.the car will find its way round the hill when it gets there.车到山前必有路。
39.a stitch in time saves nine.小洞不补，大洞吃苦。（一针及时顶九针）
40.the heart is seen in wine.酒后吐真言。