“As well might it be said that, because we are ignorant of the laws by which metals are produced and trees developed, we cannot know anything of the origin of steamships and railways.”
Other Alfred Russel Wallace Quotes
Modification of form is admitted to be a matter of time.
Alfred Russel Wallace 
56% of people like this quote
On the spiritual theory, man consists essentially of a spiritual nature or mind intimately associated with a spiritual body or soul, both of which are developed in and by means of a material organism.
Alfred Russel Wallace
55% of people like this quote
It has been generally the custom of writers on natural history to take the habits and instincts of animals as the fixed point, and to consider their structure and organization as specially adapted to be in accordance with them.
Alfred Russel Wallace
55% of people like this quote