习语一般指那些常用在一起，具有特定形式的词组，其蕴含的意义往往不能从词组中单个词的意思推测而得。通常包括成语、俗语、格言、歇后语、谚语、俚语、行话等。以下这篇
Idlenessistherootofallevil.懒惰是万恶之源
Ifamanoncefall,allwilltreadonhim.人倒众人踩
Ifitwerenotforhope,theheartwouldbreak.人若无希望，心碎肝肠断
Ifwedream,everythingispossible.敢于梦想，一切都将成为可能。
Ifyourunaftertwohares,youwillcatchneither.同时追两兔，全都抓不住
Illnewsfliesapace.恶事传千里
Inforapenny,inforapound.一不做，二不休
Inthedeepestwateristhebestfishing.水深好钓鱼
Intheend,thingswillmend.车到山前必有路
Itisafoolishsheepthatmakesthewolfhisconfessor.蠢羊才向狼忏悔
Itisbettertobealonethaninbadcompany.宁可孤独，不交恶友
Itisbettertodowellthantosaywell.与其夸夸其谈，不如埋头苦干
Itiseasiertogetmoneythantokeepit..挣钱容易，积钱难
Itisgoodfishingintroubledwaters.混水好摸鱼
Itisnevertoolatetolearn.活到老，学到老
Itisnevertoolatetomend.改过不嫌晚
Itisnousecryingoverspiltmilk.牛奶打泼，哭也无用（意同：覆水难收）
Itisthefirststepthatistroublesome.万事起头难
Itistoolatetoshutthestabledoorafterthehorsehasbeenstolen.失马锁慨，为时已晚
Itneverrainsbutitpours.不下则已，一下倾盆
Ittakestwotomakeaquarrel.一个巴掌拍不响
Jackofalltrades,masterofnone.样样皆通，样样稀松
Joysurfeitedturnstosorrow.乐极生悲
Judgenotabookbyitscover.评价一本书，不能凭封面
Judgenotfromappearance.人不可貌相
