Translation of "Brilliance" in Japanese

Every time I saw him, I was overcome with his brilliance.

彼に会うたびごとに、彼の頭の良さに圧倒された。

Nevertheless, there were enough sparks of his old brilliance to worry his adversaries.

それにもかかわらず、彼の敵を心配するのに十分な彼の古い輝きの火花がありました。

That saw sparks of brilliance, but also missed chances, shocking avarice and a reluctance

、輝きの火花が見られましたが、チャンスを逃し、衝撃的な貪欲と