You cannot be too active as regards your own efforts; you cannot be too dependent as regards Divine grace. Do every thing as if God did nothing; depend upon God as if He did everything.
Thirty spokes meet in the hub, but the empty space between them is the essence of the wheel. Pots are formed from clay, but the empty space within it is the essence of the pot. Walls with windows and doors form the house, but the empty space within it is the essence of the home.