Even in civilized mankind faint traces of monogamous instinct can be perceived.
What science cannot tell us, mankind cannot know.
Mankind has become so much one family that we cannot insure our own prosperity except by insuring that of everyone else.
Mankind's suffering belongs to all men.
For there is in mankind an unfortunate propensity to make themselves, their views and their works, the measure of excellence in every thing whatsoever
Surely the church is a place where one day's truce ought to be allowed to the dissensions and animosities of mankind.
Futurity is the great concern of mankind.
War was forced upon mankind in his original civil and social condition.
Mankind must remember that peace is not God's gift to his creatures; peace is our gift to each other.
If we destroy the biosphere, then mankind will die. We all waste our time worrying about stupid wars and petty jealousy and greed, and all the time, we're sitting on a time bomb.