The capacity to be alone is the capacity to love. It may look paradoxical to you, but it´s not. It is an existential truth: Only those people who are capable of beeing alone are capable of love, of sharing, of going into the deepest core of another person-without possessing the other, without dependent on the other, without reducing the other to a thing, and without beeing addicted to the other. They allow the other absolute freedom, because they know if the other leaves, they will be as happy as they are now. Their  happiness cannot be taken by the other, because it is not given by the other.

-Osho