Bird of a feather flock together.
物以類(lèi)聚。
A friend in need a friend indeed.
患難見(jiàn)真交。
One man's meat is another men’s poison.
利于甲者未必利于乙。
An hour in the morning is worth two in the evening.
一日之計(jì)在于晨。
One today is worth to tomorrow.
今日事今日畢。/說(shuō)干就干。