The best Quotations

The knowledge of the world is only to be acquired in the world, and not in a closet.
- Lord Chesterfield

Do you know the writers of the following quotations?

Quotation All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident. - writer
Quotation Poverty is often concealed in splendor, and often in extravagance. It is the task of many people to conceal their neediness from others. Consequently they support themselves by temporary means, and everyday is lost in contriving for tomorrow. - writer
Quotation From now on, ending a sentence with a preposition is something up with which I will not put. - writer
Quotation We do not count a man's years until he has nothing else to count. - writer
Quotation The negative cautions of science are never popular. If the experimentalist would not commit himself, the social philosopher, the preacher, and the pedagogue tried the harder to give a short-cut answer. - writer
Quotation If art is to nourish the roots of our culture, society must set the artist free to follow his vision wherever it takes him. - writer