at the zenith of

at the zenith of something

Fig. at the highest point of something; at the pinnacle of something. Tragically, at the zenith of his career, the teacher died suddenly. The scientist was at the zenith of her career when she made her discovery.
See also: of, zenith
References in classic literature ?
It was the time when the youthful Speranski was at the zenith of his fame and his reforms were being pushed forward with the greatest energy.
And at the zenith of his fame, how he would suddenly appear at the old village and stalk into church, brown and weather-beaten, in his black velvet doublet and trunks, his great jack-boots, his crimson sash, his belt bristling with horse-pistols, his crime-rusted cut- lass at his side, his slouch hat with waving plumes, his black flag unfurled, with the skull and crossbones on it, and hear with swelling ecstasy the whisperings, "It's Tom Sawyer the Pirate