Everything in nature is the result of fixed laws.
Charles DarwinRead
I have called this principle, by which each slight variation, if useful, is preserved, by the term of Natural Selection.
Interpretation
Natural selection explains how useful variations in species are preserved over generations.
This quote by Charles Darwin encapsulates the idea of natural selection, a fundamental concept in evolutionary biology. It suggests that in nature, the variations among individuals that are advantageous for survival and reproduction are retained and passed on to future generations, leading to gradual adaptation and evolution of species over time.
In practice
In a biology class while discussing the principles of evolution.
Everything in nature is the result of fixed laws.
The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.
I am quite conscious that my speculations run beyond the bounds of true science....It is a mere rag of an hypothesis with as many flaw[s] & holes as sound parts.
We cannot fathom the marvelous complexity of an organic being; but on the hypothesis here advanced this complexity is much increased. Each living creature must be looked at as a microcosm--a little universe, formed of a host of self-propagating organisms, inconceivably minute and as numerous as the stars in heaven.
we are always slow in admitting any great change of which we do not see the intermediate steps
I am not the least afraid to die
We only have to look at ourselves to see how intelligent life might develop into something we wouldnt want to meet. I imagine they might exist in massive ships, having used up all the resources from their home planet. Such advanced aliens would perhaps become nomads, looking to conquer and colonize whatever planets they can reach.
An attempt to study the evolution of living organisms without reference to cytology would be as futile as an account of stellar evolution which ignored spectroscopy.
Global warming is controversial, of course, but the controversy is mainly over whether human activity is driving it.
nd now that man's history has been for the first time systematically considered as a whole, and has been found to be, like all other phenomena, subject to invariable laws, the preparatory labours of modern Science are ended.
The DNA-encoded catalytic machinery of the cell can rapidly learn to promote new chemical reactions when we provide new reagents and the appropriate incentive in the form of artificial selection.
Genome design is going to be a key part of the future. That's why we need fast, cheap, accurate DNA synthesis, so you can make a lot of iterations of something and test them.
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