It is becoming clear that the old platitudes can no longer be maintained and that if we wish to improve our morals we must first improve our knowledge.

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

Even if the hopes you started out with are dashed hope has to be maintained.

Certain it is that a great responsibility rests upon the statesmen of all nations not only to fulfill the promises for reduction in armaments but to maintain the confidence of the people of the world in the hope of an enduring peace.

In fact it works the other way: A government as big and bossy as this one is maintained on the backs of the middle class and those who hope to join it.

I hope I shall possess firmness and virtue enough to maintain what I consider the most enviable of all titles the character of an honest man.

Nevertheless most of the evergreen forests of the north must always remain the home of wild animals and trappers a backward region in which it is easy for a great fur company to maintain a practical monopoly.

I like to maintain a certain sense of fantasy in my life. I am kind of like that at home. Do I have the full hair and makeup? No. But I might have the nice dress on.

I maintain the rather old-fashioned view that this is my work and it's in the public arena but that doesn't entitle everyone to know what happened at home before coming here.

I believe that we must maintain pride in the knowledge that the actions we take based on our own decisions and choices as individuals link directly to the magnificent challenge of transforming human history.