Safety and Risk Analysis in Railway Transport

The space of time in which a great work can now be accomplished is not marvellous. Brain, muscle, materials, and the means of rapid transport are instantly at command. If one has capital and a well-considered plan, the thing does itself. But that which is wonderful and which I can scarcely believe, although I have been in the midst of it, is the noble, artistic result which has come from the work of American artists who have had only a few months' time to prepare those very designs for the great buildings of the Exposition which have actually been executed with little change from the sketches which were presented in February, 1891.

Some people talk as if meeting the gaze of absolute goodness would be fun. They need to think again. They are still only playing with religion. Goodness is either the great safety or the great danger — according to the way you react to it.

Now analysis is of two kinds, the one directed to searching for the truth and called theoretical, the other directed to finding what we are told to find and called problematical. (1) In the theoretical kind we assume what is sought as if it were existent and true, after which we pass through its successive consequences, as if they too were true and established by virtue of our hypothesis, to something admitted: then (a), if that something admitted is true, that which is sought will also be true and the proof will correspond in the reverse order to the analysis, but (b), if we come upon something admittedly false, that which is sought will also be false. (2) In the problematical kind we assume that which is propounded as if it were known, after which we pass through its successive consequences, taking them as true, up to something admitted: if then (a) what is admitted is possible and obtainable, that is, what mathematicians call given, what was originally proposed will also be possible, and the proof will again correspond in reverse order to the analysis, but if (b) we come upon something admittedly impossible, the problem will also be impossible.