To be able to throw one's self away for the sake of a moment, to be able to sacrifice years for a woman's smile - that is happiness.
The kingdom of God could be realized simply by daring to live differently from the normal conventions. The kingdom of God in the teachings of Jesus was not an apocalyptic or heavenly projection of otherworldly desire. It was driven by a desire to think that there must be a better way to live together than the present state of affairs. And it called for a change of behavior in the present on the part of individuals invested in the vision.
In making our decisions, we must use the brains that God has given us. But we must also use our hearts which He also gave us. A man who has not learned to say, No --who is not resolved that he will take God's way, in spite of every dog that can bay or bark at him, in spite of every silvery choice that woos him aside--will be a weak and a wretched man till he dies.