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, that lives within the means available and works co-operatively against common threats.
The love for all living creatures is the most noble attribute of man.
The world will not be inherited by the strongest, it will be inherited by those most able to change.
The most important factor in survival is neither intelligence nor strength but adaptability.
Nothing exists for itself alone, but only in relation to other forms of life
It is not the biggest, the brightest or the best that will survive, but those who adapt the quickest.
I ought, or I ought not, constitute the whole of morality.
A man who dares to waste one hour of time has not discovered the value of life.
Building a better mousetrap merely results in smarter mice.
It is a cursed evil to any man to become as absorbed in any subject as I am in mine.
I never gave up Christianity until I was forty years of age.
On the ordinary view of each species having been independently created, we gain no scientific explanation.
The more one thinks, the more one feels the hopeless immensity of man's ignorance.
A man's friendships are one of the best measures of his worth.
Ignorance more frequently begets confidence than does knowledge.
Such simple instincts as bees making a beehive could be sufficient to overthrow my whole theory.
Some call it evolution, And others call it God.
In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed.
Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.
Another source of conviction in the existence of God, connected with the reason and not with the feelings, impresses me as having much more weight. This follows from the extreme difficulty or rather impossibility of conceiving this immense and wonderful universe, including man with his capacity of looking far backwards and far into futurity, as the result of blind chance or necessity. When thus reflecting I feel compelled to look to a First Cause having an intelligent mind in some degree analogous to that of man; and I deserve to be called a Theist.
An agnostic would be the more correct description of my state of mind.
The question of whether there exists a Creator and Ruler of the Universe has been answered in the affirmative by some of the highest intellects that have ever existed.
Animals, whom we have made our slaves, we do not like to consider our equal.
Much love much trial, but what an utter desert is life without love.
It is always advisable to perceive clearly our ignorance.
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