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
What we can be scientifically certain of is that our continued use of fossil fuels is pushing us to a point of no return
Venus has a runaway greenhouse effect. I kind of want to know what happened there because we're twirling knobs here on Earth without knowing the consequences of it. Mars once had running water. It's bone dry today. Something bad happened there as well.
A mind is accustomed to mathematical deduction, when confronted with the faulty foundations of astrology, resists a long, long time, like an obstinate mule, until compelled by beating and curses to put its foot into that dirty puddle.
A discovery is like falling in love and reaching the top of a mountain after a hard climb all in one, an ecstasy not induced by drugs but by the revelation of a face of nature that no one has seen before and that often turns out to be more subtle and wonderful than anyone had imagined.
By curious accident of history and geography, the world's major energy resources are located pretty much in Shiite regions. They're a minority in the Middle East, but they happen to be where the oil is, right around the northern part of the Gulf.
I think the really cool and compelling thing about math and physics is that it opens up entry to all these hypotheticals - or at least, it gives you the language to talk about them. But at the same time, if a scenario is completely disconnected from reality, it's not all that interesting.
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