Never learn anything until you find you have been made uncomfortable for a good long while by not knowing it; when you find that you have occasion for this or that knowledge, or foresee that you will have occasion for it shortly, the sooner you learn it the better, but till then spend your time in growing bone and muscle; these will be much more useful to you than Latin and Greek, nor will you ever be able to make them if you do not do so now, whereas Latin and Greek can be acquired at any time by those who want them.
– Samuel Butler
The Way of All Flesh, Chapter 31.