expression
practice makes perfect; there is nothing but practice
A set phrase emphasizing that the only way to improve is through repeated practice. Often used as a motivational saying.
ピアノが上手くなりたいなら、練習あるのみだ。
If you want to get better at piano, there's nothing for it but to practice.
失敗を恐れずに、練習あるのみです。
Don't be afraid of failure; practice is the only way.