In all works on Natural History, we constantly find details of the marvellous adaptation of animals to their food, their habits, and the localities in which they are found. -Alfred Russel Wallace History
I am decidedly of the opinion that in very many instances we can trace such a necessary connexion, especially among birds, and often with more complete success than in the case which I have here attempted to explain. -Alfred Russel Wallace Success
In all works on Natural History, we constantly find details of the marvellous adaptation of animals to their food, their habits, and the localities in which they are found. -Alfred Russel Wallace Food
To expect the world to receive a new truth, or even an old truth, without challenging it, is to look for one of those miracles which do not occur. -Alfred Russel Wallace Truth
In my solitude I have pondered much on the incomprehensible subjects of space, eternity, life and death. -Alfred Russel Wallace Space
Truth is born into this world only with pangs and tribulations, and every fresh truth is received unwillingly. -Alfred Russel Wallace Truth