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The starting point of Darwin's theory of evolution is precisely the existence of those differences between individual members of a race or species which morphologists for the most part rightly neglect. The first condition necessary, in order that any process of Natural Selection may begin among a race, or species, is…
Geology has its peculiar difficulties, from which all other sciences are exempt. Questions in chemistry may be settled in the laboratory by experiment. Mathematical and philosophical questions may be discussed, while the materials for discussion are ready furnished by our own intellectual reflections. Plants, animals…
For being educated, from my cradle, in the grossest superstition and idolatry, God was pleased to make my own reason, and such as made use of theirs, the happy instruments of my conversion. Thus I have been very early accustomed to examination and enquiry, and taught not to captivate my understanding, no more than my…