English biologist.
He was an advocate of Darwin's natural selection theory and named the phylum Coelenterata (Jellyfish).
If a little knowledge is dangerous, where is the man who has so much as to be out of danger?"
"In scientific work, those who refuse to go beyond fact rarely get as far as fact."
It is the customary fate of new truths to begin as heresies and to end as superstitions.
There is the greatest practical benefit in making a few failures early in life.
"A well-worn adage advises those who set out upon a great enterprise to count the cost, yet some of the greatest enterprises have succeeded because the people who undertook them did not count the cost."
