肝心なのは大きな人生観なのです！
それに較べれば、いろいろなことがらはそれほど重要ではありません。
演奏会で少々うまくいかなければ、次の機会により上手にやればよろしい。
It is the larger view of life that matters!
In comparison, a lot of things are not that important.
If you don't do well at a concert, you can do better the next time.
If you don't do a little well at a concert, you can do better the next time.