What we call civilisation—the accumulation of knowledge which has come down to us from our forefathers—is the fruit of thousands of years of human thought and toil. It is not the result of the labour of the ancestors of any separate class of people who exist to-day, and therefore it is by right the common heritage of all. Every little child that is born into the world, no matter whether he is clever or dull, whether he is physically perfect or lame, or blind, no matter how much he may excel or fall short of his fellows in other respects, in one thing at least he is their equal—he is one of the heirs of all the ages that have gone before.