"My father's mind was not scientific, and he did not try to generalize his knowledge under general laws; yet he formed a theory for almost everything which occurred. I do not think I gained much from him intellectually; but his example ought to have been of much moral service to all his children. One of his golden rules (a hard one to follow) was, 'Never become the friend of any one whom you cannot respect.'"
Dr. Darwin had six children (Of these Mrs. Wedgwood is now the sole survivor.): Marianne, married Dr. Henry Parker; Caroline, married Josiah Wedgwood; Erasmus Alvey; Susan, died unmarried; Charles Robert; Catherine, married Rev. Charles Langton.
The elder son, Erasmus, was born in 1804, and died unmarried at the age of seventy-seven.
He, like his brother, was educated at Shrewsbury School and at Christ's College, Cambridge. He studied medicine at Edinburgh and in London, and took the degree of Bachelor of Medicine at Cambridge. He never made any pretence of practising as a doctor, and, after leaving Cambridge, lived a quiet life in London.