A man should be independent at the age of thirty. At thirty, a man should be able to think for himself

A lie told often enough becomes the truth

to talk shop

hold one's peace

hold one's peace

repeatedly request sb. to take up a responsible post;earnestly seek the services of able and virtuous people

Two heads are better than one

time after time

Misfortune may be an actual blessing

Misfortune might be a blessing in disguise

the weakest goes to the wall

If you would not be known to do anything, never do it

A timely snow promises a good harvest

do in Rome as the Romans do

It actually gave a vivid picture of cut the quick

wet behind the ears

this child is teachable

The mayor finally got his way with the city council

glad to be back in one's proper surroundings (lit. like a fish back in water)

Only the wearer knows where the shoes pain