The best Quotations

It has been my experience that folks who have no vices have very few virtues.
- Abraham Lincoln

Do you know the writers of the following quotations?

Quotation All architecture is great architecture after sunset; perhaps architecture is really a nocturnal art, like the art of fireworks. - writer
Quotation Not to be cheered by praise, not to be grieved by blame, but to know thoroughly ones own virtues or powers are the characteristics of an excellent man. - writer
Quotation Cockroaches and socialites are the only things that can stay up all night and eat anything. - writer
Quotation Generosity is nothing else than a craze to possess. All which I abandon, all which I give, I enjoy in a higher manner through the fact that I give it away. To give is to enjoy possessively the object which one gives. - writer
Quotation Character is that which reveals moral purpose, exposing the class of things a man chooses or avoids. - writer
Quotation Progress however, of the best kind, is comparatively slow. Great results cannot be achieved at once; and we must be satisfied to advance in life as we walk, step by step. - writer