The best Quotations

A man can seldom - very, very, seldom - fight a winning fight against his training; the odds are too heavy.
- Mark Twain

Do you know the writers of the following quotations?

Quotation Mutability of temper and inconsistency with ourselves is the greatest weakness of human nature. - writer
Quotation Action is the highest perfection and drawing forth of the utmost power, vigor, and activity of man's nature. - writer
Quotation The fiery trials through which we pass will light us down in honor or dishonor to the latest generation. - writer
Quotation This Party is a moral crusade or it is nothing. - writer
Quotation Life loves to be taken by the lapel and told: ''I'm with you kid. Let's go.'' - writer
Quotation The true university of these days is a collection of books. - writer