Conversation so far:
what happened in 1925 with gary cooper?
In early 1925, Cooper began his film career in silent pictures.
what pictures did he do?
The Thundering Herd and Wild Horse Mesa with Jack Holt, Riders of the Purple Sage and The Lucky Horseshoe with Tom Mix, and The Trail Rider with Buck Jones.
did he win any awards for them?
Cooper landed high-profile roles in Children of Divorce and Wings, the latter being the first film to win an Academy Award for Best Picture.
who did he work with?
In 1928, Paramount paired Cooper with a youthful Fay Wray in The Legion of the Condemned and The First Kiss--advertising them as the studio's "glorious young lovers".

Question: what was his greatest achievement?
Self-contained rewrite: what was Gary Cooper's greatest achievement?