The best Quotations

The only question with wealth is, what do you do with it?
- John D. Rockefeller

Do you know the writers of the following quotations?

Quotation Things are as they are. Looking out into it the universe at night, we make no comparisons between right and wrong stars, nor between well and badly arranged constellations. - writer
Quotation True dignity is never gained by place, and never lost when honors are withdrawn. - writer
Quotation Don't wait. The time will never be just right. - writer
Quotation Bad philosophers may have a certain influence; good philosophers, never. - writer
Quotation Each life makes its own imitation of immortality. - writer
Quotation Population, when unchecked, increases in a geometrical ratio. - writer