Every dog has its day.

great minds think alike

Bad habits die hard.

quit while you're ahead

you win some, you lose some

speak of the devil
give the devil his due
play devil's advocate
devil in disguise

between the devil and the deep blue sea
The devil is in the details
an angel's face, but a devil's heart
sell your soul to the devil

work like the devil
a devil of a time

once bitten twice shy

ride the wave：“乘风破浪”或“顺势而为”

go to the ends of the earth：赴汤蹈火

wake up and smell the coffee

young blood

have egg on someone's face

Monday morning quarterback

put one's money where one's mouth is
actions speak louder than words

you reap what you sow

yellow journalism

a ballpark figure | a ballpark estimate（大致估计，大概数字）

hold your head high | hold your head up high

talk is cheap

an ivory tower

lose your head

in two minds

You are what you eat.

Never say die.

dig one's own grave