在英语作文中引用谚语可以增强文章的说服力和文采。以下是一些常用的英语谚语及其含义：

Practice makes perfect.熟能生巧。

God helps those who help themselves.天助自助者。

Easier said than done.说起来容易做起来难。

Where there is a will, there is a way.有志者事竟成。

Actions speak louder than words.行动胜于言语。

Every cloud has a silver lining.每朵乌云都有银边，即每件坏事都有好的一面。

A friend in need is a friend indeed.患难见真情。

Prevention is better than cure.预防胜于治疗。

Not afraid of rainy weather for a long time, as long as the Northwest opening.不怕阴雨天气久，只要西北开了口。

One hero, three helpers.一个好汉三个帮。

It’s never too late to mend.亡羊补牢。

Keep good men company and you shall be of the number.近朱者赤，近墨者黑。

A good book is a good friend.好书如挚友。

Nothing is impossible to a willing heart.心之所愿，无事不成。

Each bird likes to hear himself sing.每一只鸟都爱听自己歌唱。

Eagles fly alone, but sheep flock together.鹰爱独飞羊爱群。

Early to bed and early to rise, makes a man healthy, wealthy and wise.早睡早起，使人健康、富有而聪明。

First love is unforgettable all one's life.初恋是永生难忘的。

Love warms more than a thousand fires.爱情的炽热胜过千万团的火。

When love puts in, friendship is gone.爱情进入，友情完结。

Diligence is the mother of good luck.刻苦是成功之母。

Do as you would be done by.推己及人。

Don't put off till tomorrow what should be done today.今日事，今日毕。

A bad beginning makes a bad ending.不善始者不善终。

A bird in the hand is worth than two in the bush.一鸟在手胜过双鸟在林。

这些谚语在英语作文中非常实用，能够丰富文章的内涵，使文章更加生动有力。在引用时，请确保选择与作文主题相关的谚语，并注意其准确性和适用性。