The very essence of instinct is that it's followed independently of reason.
The limit of man s knowledge in any subject possesses a high interest which is perhaps increased by its close neighbourhood to the realms of imagination.
The earthquake, however, must be to every one a most impressive event: the earth, considered from our earliest childhood as the type of solidity, has oscillated like a thin crust beneath our feet; and...
One hand has surely worked throughout the universe.
As natural selection acts by competition, it adapts the inhabitants of each country only in relation to the degree of perfection of their associates; so that we need feel no surprise at the inhabitant...
It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.
Attention, if sudden and close, graduates into surprise; and this into astonishment; and this into stupefied amazement.
If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin.
We are not here concerned with hopes or fears, only with truth as far as our reason permits us to discover it.
I have called the principle by which each slight variation if useful is preserved by the term of Natural Selection.
One day, on tearing off some old bark, I saw two rare beetles, and seized one in each hand. Then I saw a third and new kind, which I could not bear to lose, so I popped the one which I held in my righ...
A man who dares to waste one hour of time has not discovered the value of life.
As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being, if it vary however...
A man who dares to waste one hour of life has not discovered the value of life.
I agree with Agassiz that dogs possess something very like a conscience.
It is always advisable to perceive clearly our ignorance.
I cannot persuade myself that a beneficent and omnipotent God would have designedly created parasitic wasps with the express intention of their feeding within the living bodies of Caterpillars.
How paramount the future is to the present when one is surrounded by children.
A grain in the balance will determine which individual shall live and which shall die - which variety or species shall increase in number, and which shall decrease, or finally become extinct.
I love fools' experiments. I am always making them.
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