Issued in 1966, this French semi-postal stamp (0.30 + 0.10 F) commemorates Hippolyte Taine, the distinguished philosopher, historian, and literary critic whose works influenced 19th-century intellectual thought. The design, engraved by Pierre Gandon after art by Cottet, presents a detailed portrait of Taine alongside a depiction of his birthplace in Vouziers. The additional surtax supported social causes. Printed in green and brown, it exemplifies the fine engraved portraiture characteristic of mid-20th-century French philately.