From their teenage years on, children are considerably more capable of causing parents unhappiness than bringing them happiness. That is one reason parents who rely on their children for happiness make both their children and themselves miserable.

But happiness is no respecter of persons.

He who avoids complaint invites happiness.

Happiness and peace will come to earth only as the light of love and human compassion enter the souls of men.

The ultimate end of human acts is eudaimonia, happiness in the sense of living well, which all men desire all acts are but different means chosen to arrive at it.