天演 was Yan Fu's (
严复, 1854-1921) translation of 'evolution' in his 1898 《
天演论》, a partial rendering of T.H. Huxley's 'Evolution and Ethics'. The book introduced 'survival of the fittest' (
物竞天择,
适者生存) to China and shook a generation of reformers. The modern term
进化 (jìnhuà) eventually replaced
天演.