Our world contains grave evils, which can be remedied if [people] wish to remedy them.  Those who are aware of these evils and fight against them are likely, it is true, to have less everyday happiness than those who acquiesce to the status quo.  But in place of everyday happiness they will have something which I, for my part, value more highly, both for myself and for my children.  They will have the sense of doing what lies in their power to make the world less painful.  They will have a more just standard of values than is possible for the easy-going conformist.  They will have the knowledge that they are among those who prevent the human race from sinking into stagnation or despair.  This is something better than slothful contentment…