Experience is the mother of wisdom

no progress simply means regression

to not think;to talk or act without thinking.

No discord, no concord

to take French leave

wide-ranging and profound;broad and deep

tumultuous situations

Illness comes in by mouth and comes out by it

Too many cooks spoil the broth

Rome was not built in a day

to have a unique style;describes literature;art and architecture

Don't bite the hand that feeds you

irregular;capricious

beyond one's grasp

Incomparably beautiful

shut oneself up and ponder one's mistakes

absolutely necessary

worse off than some, better off than many; to fall short of the best, but be better than the worst

A slow sparrow should make an early start

confusing cause and effect;to reverse the primary and secondary tasks (lit. to invert root and branch)