(figuratively) To enjoy a pleasant subject or thing, one must take trouble and hardship

(informal, rare) Someone with A-cup breasts.

Enthusiasm of an inexperienced person will cause harm.

(Commonwealth of Nations) New management imposes radical changes, but those with prior experience have more knowledge.

It's best not to talk too much.

Alternative form of every rose has its thorn

Insults and offensive speech hurt more than physical injuries.

(idiomatic) To accept or endure an unpleasant situation.

Contentment is more a matter of attitude than circumstances.

It is better to prevent a disease than to have to cure it. / (idiomatic, by extension) Precaution and prevention of an undesirable thing is preferable to dealing with its potential consequences.