The backward catches up with the advanced.

A friend is best found in adversity.

Prosperity makes friends, adversity tries them.(A friend in need is a friend indeed.)

good times don't last long(A flower, though beautiful, cannot retain its beauty for hundred days)

a change in form but not in content(the mixture as before)

the waves behind drive on those before, so the new excels the old

Why not go ahead with it?(One would be only too glad to do it.)

mixed, uneven in texture

Heavy utilization

The light of great joy

The tigers and rhinoceros escaped from the corrals.

The hardest life of a widow

monkeys being confined in a bag

fig. two enemies cannot live under the same sky; (former KMT slogan against CPC) "gentlemen and thieves cannot coexist"; lit. Shu Han 蜀汉and Cao Wei 曹魏cannot coexist (idiom)

Good intentions do bad things

be vigorous and energetic

A disaster befalls one unexpectedly.

Waves urge waves.

every trade has its master(one may distinguish himself in any trade)

Even a beast does not eat its young.