I am sorry to think that you do not get a man's most effective criticism until you provoke him. Severe truth is expressed with some bitterness.
Henry David ThoreauOur whole life is startlingly moral. There is never an instant's truce between virtue and vice.
Henry David ThoreauA true politeness does not result from any hasty and artificial polishing, it is true, but grows naturally in characters of the right grain and quality, through a long fronting of men and events, and rubbing on good and bad fortune.
Henry David ThoreauThe knowledge of an unlearned man is living and luxuriant like a forest, but covered with mosses and lichens and for the most part inaccessible and going to waste; the knowledge of the man of science is like timber collected in yards for public works, which still supports a green sprout here and there, but even this is liable to dry rot.
Henry David Thoreau