Avarice, the spur of industry, is so obstinate a passion, and works its way through so many real dangers and difficulties, that it is not likely to be scared by an imaginary danger, which is so small, that it scarcely admits of calculation. Commerce, therefore, in my opinion, is apt to decay in absolute governments, not because it is there less secure, but because it is less honourable.
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Essay 12 : Of Civil LibertyDavid Hume
One might think this means that imaginary numbers are just a mathematical game having nothing to do with the real world. From the viewpoint of positivist philosophy, however, one cannot determine what is real. All one can do is find which mathematical models describe the universe we live in. It turns out that a mathematical model involving imaginary time predicts not only effects we have already observed but also effects we have not been able to measure yet nevertheless believe in for other reasons. So what is real and what is imaginary? Is the distinction just in our minds?
Stephen Hawking
In primitive society the rules of ceremonial purity observed by divine kings, chiefs, and priests agree in many respects with the rules observed by homicides, mourners, women in childbed, girls at puberty, hunters and fishermen, and so on. To us these various classes of persons appear to differ totally in character and condition; some of them we should call holy, others we might pronounce unclean and polluted. But the savage makes no such moral distinction between them; the conceptions of holiness and pollution are not yet differentiated in his mind. To him the common feature of all these persons is that they are dangerous and in danger, and the danger in which they stand and to which they expose others is what we should call spiritual or ghostly, and therefore imaginary. The danger, however, is not less real because it is imaginary; imagination acts upon man as really does gravitation, and may kill him as certainly as a dose of prussic acid.
James Frazer
Let the fear of a danger be a spur to prevent it: he that fears otherwise, gives advantage to the danger.
Benjamin Disraeli
Let the fear of a danger be a spur to prevent it: He that fears otherwise, gives advantage to the danger.
Francis Quarles
It is not an unimportant fact to be known, that, since the year 1831, few or none of the difficulties and dangers which once environed the Santa Fé adventurer have been encountered. No traders have been killed by the [natives] on the regular route, and but few animals stolen from the caravans. On the whole, the rates of insurance upon adventures in this trade should hardly be as high as upon marine adventures between New York and Liverpool. While I declare, however, the serious dangers and troubles to have been in general so slight, I ought not to suppress at least an outline of the difficulties that occurred on the Prairies in 1843, which were attended with very serious consequences.
Josiah Gregg
Hume, David
Humphrey, Hubert
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