Enthusiasm begets enthusiasm, ...

Enthusiasm begets enthusiasm, eloquence produces conviction for the moment; but it is only by truth to Nature and the everlasting institutions of mankind that those abiding influences are won that enlarge from generation to generation.
Enthusiasm begets enthusiasm, eloquence produces conviction for the moment; but it is only by truth to Nature and the everlasting institutions of mankind that those abiding influences are won that enlarge from generation to generation.
 James Russell Lowell

More phrases

Difficulties are meant to rouse, not discourage. The human spirit is to grow strong by conflict.
 William Ellery Channing
Everything you are against weakens you. Everything you are for empowers you.
People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf.
 Richard Grenier
Nothing is so strong as gentleness, nothing so gentle as real strength.
 Saint Francis de Sales
For a human being, sadness is as powerful as terror. Sadness makes a warrior shed tears of blood.

Quotes from the same author

It is the rooted instinct in men to admire what is better and more beautiful than themselves.
 James Russell Lowell
That best academy, a mother's knee.
 James Russell Lowell
A friendship counting nearly forty years is the finest kind of shade-tree I know.
 James Russell Lowell
There is something magnificent in having a country to love.
 James Russell Lowell
A woman's love Is mighty, but a mother's heart is weak, And by its weakness overcomes.
 James Russell Lowell