ことわざ
「saying」もしくは「proverb」
ことわざでなくても、「メタファー」度が高いものはこのタグで。
example
A penny saved is a penny earned
When in Roma, do as the Romans do
The grass is greener on the other side.
Rome wasn't built in a day.
Kill two birds with one stone.「一石二鳥」
There’s no crying over spilt milk.
Strike the iron while it is hot.「鉄は熱いうちに打て」
Failure teaches success.「失敗は成功のもと」
No pain, no gain.「苦労なくして利益なし」