training in the writing of good English is indispensable to any learned man who expects to make his learning count for what it ought to count in the … - Theodore Roosevelt

Peace is normally a great good, and normally it coincides with righteousness, but it is righteousness and not peace which should bind the conscience of a nation as it should bind the conscience of an individual; and neither a nation nor an individual can surrender conscience to another's keeping.

In my Cabinet at the time there were men of English and French, German, Irish, and Dutch blood, men born on this side and men born in Germany and Scotland; but they were all Americans and nothing else; and every one of them was incapable of thinking of himself or of his fellow-countrymen, excepting in terms of American citizenship. If any one of them had anything in the nature of a dual or divided allegiance in his soul, he never would have been appointed to serve under me, and he would have been instantly removed when the discovery was made. There wasn't one of them who was capable of desiring that the policy of the United States should be shaped with reference to the interests of any foreign country or with consideration for anything, outside of the general welfare of humanity, save the honor and interest of the United States, and each was incapable of making any discrimination whatsoever among the citizens of the country he served, of our common country, save discrimination based on conduct and on conduct alone.

Personally, I do not believe that our civilization will fall. I think that on the whole we have grown better and not worse. I think that on the whole the future holds more for us than even the great past has held. But, assuredly, the dreams of golden glory in the future will not come true unless, high of heart and strong of hand, by our own mighty deeds we make them come true. We can not afford to develop any one set of qualities, any one set of activities, at the cost of seeing others, equally necessary, atrophied. Neither the military efficiency of the Mongol, the extraordinary business ability of the Phoenician, nor the subtle and polished intellect of the Greek availed to avert destruction.