One swallow does not make a summer,
neither does one fine day;
similarly one day or brief time of happiness does not make a person entirely happy.

All human happiness or misery takes the form of action; the end for which we live is a certain kind of action.

The happy life is thought to be one of excellence; now an excellent life requires exertion, and does not consist in amusement.

Different men seek after happiness in different ways and by different means, and so make for themselves different modes of life and forms of government.

Happiness is the meaning and the purpose of life, the whole aim and end of human existence.

Being happy doesn't mean that everything is perfect. It means that you've decided to look beyond the imperfections.