Never let your sense of morals prevent you from doing what is right! – Isaac Asimov
Humanity has the stars in its future, and that future is too important to be lost under the burden of juvenile folly and ignorant superstition. – Isaac Asimov
It is change, continuing change, inevitable change, that is the dominant factor in society today. No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be. – Isaac Asimov
Consequences are unpitying. Our deeds carry their terrible consequences, quite apart from any fluctuations that went before—consequences that are hardly ever confined to ourselves. And it is best to fix our minds on that certainty, instead of considering what may be the elements of excuse for us. – George Eliot, Adam Bede