Plants, in a state of nature, are always warring with one another, contending for the monopoly of the soil,-the stronger ejecting the weaker,-the mor….

What you do for money you do badly..

From my earliest childhood I nourished and cherished the desire to make a creditable journey in a new country, and write such a respectable account o….

I was introduced to Mr. Davy, who has rooms adjoining mine (in the Royal Institution); he is a very agreeable and intelligent young man, and we have ….

This boulder seemed like a curious volume, regularly paged, with a few extracts from older works. Bacon tells us that "some books are to be tasted, o….

I have seen many phases of life; I have moved in imperial circles, I have been a Minister of State; but if I had to live my life again, I would alway….

In [David] Douglas's success in life ... his great activity, undaunted courage, singular abstemiousness, and energetic zeal, at once pointed him out ….

Induction makes you feel guilty for getting something out of nothing, and it is artificial, but it is one of the greatest ideas of civilization..

In chemistry, our theories are crutches; to show that they are valid, they must be used to walk... A theory established with the help of twenty facts….

Thought, then, is the execution of this computer code..

I'm against reparations. At this point, blacks should just be handing money to themselves..

May we attribute to the color of the herbage and plants, which no doubt clothe the plains of Mars, the characteristic hue of that planet, which is no….

Scientists have a second brain where other people have their hearts..

I do like that idea that music can work on two levels, and you only pick up on the second one after a few listens..

Here is the cosmological proof of the existence of God - the design argument of Paley - updated and refurbished. The fine tuning of the universe prov….

Taken over the centuries, scientific ideas have exerted a force on our civilization fully as great as the more tangible practical applications of sci….

How fortunate for civilization, that Beethoven, Michelangelo, Galileo and Faraday were not required by law to attend schools where their total person….

One should avoid carrying out an experiment requiring more than 10 per cent accuracy..

That hemisphere of the moon which faces us is better known than the earth itself; its vast desert plains have been surveyed to within a few acres; it….

I work for perfection, for perfection's sake. I don't care what the external reasons are. And it's much more like a ballerina on opening night. You'v….

Every lecture should state one main point and repeat it over and over, like a theme with variations. An audience is like a herd of cows, moving slowl….