Charlotte Perkins Gilman:

The first duty of a human being is to assume the right functional relationship to society — more briefly, to find your real job, and do it.

Chinese proverb:

One generation plants the trees; another gets the shade.

Cicero:

We were born to unite with our fellow men, and to join in community with the human race.

Elie Wiesel:

This is the duty of our generation as we enter the twenty-first century — solidarity with the weak, the persecuted, the lonely, the sick, and those in despair. It is expressed by the desire to give a noble and humanizing meaning to a community in which all members will define themselves not by their own identity but by that of others.