True friendship exists when human beings share a love of goodness and truth. Two friends alone, like two legs on a table, offer a wobbly situation at best. But two friends anchored to a third, spiritual center form a rock-solid foundation to support everything that comes: hardship, suffering, exaltation, love. True friendship between two human beings exists only when there is a third Friend present: call this third friend God, or simply the Sacred.
It is easy in the world to live after the world's opinion; it is easy in solitude to live after our own; but great are those who in the midst of the crowd keep with perfect sweetness the independence of solitude.