The best Quotations

Even the weak become strong when they are united.
- Johann Friedrich Von Schiller

Do you know the writers of the following quotations?

Quotation Horse-play, romping, frequent and loud fits of laughter, jokes, and indiscriminate familiarity, will sink both merit and knowledge into a degree of contempt. They compose at most a merry fellow; and a merry fellow was never yet a respectable man. - writer
Quotation I feel that if a person has problems communicating the very least he can do is to shut up. - writer
Quotation When every physical and mental resources is focused, one's power to solve a problem multiplies tremendously. - writer
Quotation So much of what we call management consists in making it difficult for people to work. - writer
Quotation The stern hand of fate has scourged us to an elevation where we can see the great everlasting things which matter for a nation - the great peaks we had forgotten, of Honor, Duty, Patriotism, and clad in glittering white, the great pinnacle of Sacrifice pointing like a rugged finger to Heaven. - writer
Quotation We never know how high we are till we are called to rise; and then, if we are true to plan, our stature's touch the skies. - writer