first come, first served.

先来先招待。

where there is s will，there is a way.

有志者事竟成。

no pains，no gains.

不劳则无获

time and tide wait for no man.

时不待人

strike while the iron is hot.

趁热打铁

it‘s never too late to mend.

亡羊补牢

there is no smoke without fire.

无风不起浪

kill two birds with one stone.

一箭双雕

we never know the worth of water till the well is dry.

井干方知水珍贵

less is more.

简单就是美

a blessing in disguise.

因祸得福

love me, love my dog.

爱屋及乌

every dog has his day.

凡人皆有得意日

sharpening your axe will not delay your job of cutting wood.

磨刀不误砍柴功。

seeing is believing.

眼见为实

well begun is half done.

好的开端是成功的一半

time flies never to be recalled.

光阴一去不复返

when in rome, do as roman do.

入乡随俗

he laughs best who laughs last.

谁笑到最后谁笑得最美

haste makes waste.

忙乱易错。欲速则不达。

better be envied than pitied.

宁被人妒，不受人怜。

although the sun shine, leave not your cloak at home.

未雨绸缪。

so the world wags.

这就是人生。

one can not be in two places at once.

一心不可二用。

no weal without woe.

福兮祸所伏, 祸兮福所倚。