So all life is a great chain, the nature of which is known whenever we are shown a link of it.
Arthur Conan DoyleIt is a capital mistake to theorize before you have all the evidence. It biases the judgment.
Arthur Conan DoyleWhen we think how narrow and devious this path of nature is, how dimly we can trace it, for all our lamps of science, and how from the darkness which girds it round great and terrible possibilities loom ever shadowly upwards, it is a bold and a confident man who will put a limit to the strange by-oaths into which the human spirit may wander.
Arthur Conan Doyle