Charles Kingsley 
The Good News of God [EPUB ebook] 

Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
THESE words often puzzle and pain really good people, because they seem to put the hardest duty first. It seems, at times, so much more easy to love one’s neighbour than to love God. And strange as it may seem, that is partly true. St. John tells us so—‘He that loves not his brother whom he hath seen, how can he love God whom he hath not seen?’ Therefore many good people, who really do love God, are unhappy at times because they feel that they do not love him enough. They say in their hearts—‘I wish to do right, and I try to do it: but I am afraid I do not do it from love to God.’