No one has a right to consume happiness without producing it.
Many people know so little what is beyond their short range of experience. They look within themselves and find nothing! Therefore, they conclude that there is nothing outside themselves, either.
As selfishness and complaint pervert the mind, so love with its joy clears and sharpens the vision.
Character cannot be developed in ease and quiet. Only through experience of trial and suffering can the soul be strengthened, ambition inspired, and success achieved.