the most important foundation or element for achieving success
成功を達成するための最も重要な基盤または要素 (seikou o tassei suru tame no mottomo juuyou na kiban matawa youso)
"Hard work is the cornerstone of success."
"努力は成功の礎（いしずえ）である。" (doryoku wa seikou no ishizue de aru)
To spend all your time studying
to do something very important that will be remembered
a child who closely resembles their parent in looks or behav...
to continue doing something well
to survive financially in difficult times
a sudden outpouring of creative ideas
