The great body of physical science, a great deal of the essential fact of financial science, and endless social and political problems are only accessible and only thinkable to those who have had a sound training in mathematical analysis, and the time may not be very remote when it will be understood that for complete initiation as an efficient citizen of one of the new great complex worldwide States that are now developing, it is as necessary to be able to compute, to think in averages and maxima and minima, as it is now to be able to read and write.

When the mind grapples with a great and intricate problem, it makes its advances step by step, with but little realization of the gains it has made, until suddenly, with an effect of abrupt illumination, it realizes its victory.

We want to get rid of the militarist not simply because he hurts and kills, but because he is an intolerable thick-voiced blockhead who stands hectoring and blustering in our way of achievement.

The science hangs like a gathering fog in a valley, a fog which begins nowhere and goes nowhere, an incidental, unmeaning inconvenience to passers-by.

I do not propose to add anything to what has already been written concerning the loss of the "Lady Vain."

I had rather be called a journalist than an artist.

If your life doesn't end in failure, you haven't reached high enough. So it was failure I had to achieve.