Excerpts: THIS book is an attempt to solve, in a way which any interested layman can understand, a problem which has been hotly debated throughout the centuries. Is Matter the only reality? Philosophers, theologians, scientists as well as others who can lay claim to no specialized knowledge, but whose concerns range beyond the petty tasks each day brings forth, have all said their say. And some of them have said yes, others no. Those who say yes are called materialists. Those who say no have no collective name. They all believe that there are other things besides Matter, but they are not all interested in the same things. "Matter is not everything," say many philosophers. "There is also Mind. This can be proved to have a separate existence." "Matter is not everything," say the theologians. "There are also a God and the Souls of men. Those who do not realize this will fail to seek that spiritual guidance which alone can raise men above the level of brute creation." "Matter is not everything," say various idealists. Among them are teachers, moralists, poets. These insist on the non-material reality of "higher things," of beauty, truth and goodness. In the materialism of our age they see the risk that mankind may ignore those things which make life most worth living. Values disappear, or, at least, have but a precarious existence in materialistic doctrine, so that, to the idealist, it seems that the materialist says: "What harm if the temple be destroyed? The stones remain." "Yes, Matter is everything. Science proves it," says the materialist to this heterogeneous collection of opponents with their various interests, their various reasons for opposing him, their various ways of saying what they think. And always he feels a little contemptuous since they base their beliefs on considerations which he does not regard as valid. Their attitude seems to him to be due to ignorance and prejudice. For they fail to build as he does, or believe he does, "on the facts of science." ... In this book we want to revive the old controversy and to do so in such a way as to secure the attention of both sides. We want to provide both with a common meeting ground or shall we call it a battleground? We want to put an end to the complacency with which those who hold tenaciously to their own opinions talk much and write much, but listen only to themselves or to those with whom they agree. At the same time we do not intend to seek a compromise. We shall take sides and offer our services (for what they may be worth) wholeheartedly to those who are opposed to materialism.