In his last years, Darwin was still very famous—indeed, after his death he was buried as a national hero in Westminster Abbey—but he was increasingly unhappy about his life, seeing his work as unsatisfying, unsatisfactory, and unoriginal. “I have not the heart or strength at my age to begin any investigations lasting years, which is the only thing which I enjoy,” he confessed to a friend. “I have everything to make me happy and contented, but life has become very wearisome to me.”
