Even happiness itself may become habitual. There is a habit of looking at the bright side of things, and also of looking at the dark side.
Samuel SmilesNational progress is the sum of individual industry, energy, and uprightness, as national decay is of individual idleness, selfishness, and vice.
Samuel SmilesWe learn wisdom from failure much more than from success. We often discover what will do, by finding out what will not do; and probably he who never made a mistake never made a discovery.
Samuel Smiles