Whether happiness or unhappiness, freedom or slavery, in short whether good or evil results from an improved environment depends largely upon how the change has been brought about, upon the methods by which the physical results have been reached, and in what spirit and for what purpose the fruits of that change are used. Because a higher standard of living, a greater productiveness and a command over nature are not good in and of themselves does not mean that we cannot make good of them, that they cannot be a source of inner strength.