Scenery is fine - but human nature is finer.
I have always considered it as treason against the great republic of human nature, to make any man's virtues the means of deceiving him.
He who has so little knowledge of human nature as to seek happiness by changing anything but his own disposition will waste his life in fruitless efforts.
Cruelty is a part of nature, at least of human nature, but it is the one thing that seems unnatural to us.
The deepest principle in human nature is the craving to be appreciated.
The sway of alcohol over mankind is unquestionably due to its power to stimulate the mystical faculties of human nature, usually crushed to earth by the cold facts and dry criticisms of the sober hour.
Human Nature is the only science of man; and yet has been hitherto the most neglected.
There is a very remarkable inclination in human nature to bestow on external objects the same emotions which it observes in itself, and to find every where those ideas which are most present to it.
Physical nature lies at our feet shackled with a hundred chains. What of the control of human nature? Do not point to the triumphs of psychiatry, social services or the war against crime. Domination of human nature can only mean the domination of every man by himself.
The savior who wants to turn men into angels is as much a hater of human nature as the totalitarian despot who wants to turn them into puppets.
What breadth, what beauty and power of human nature and development there must be in a woman to get over all the palisades, all the fences, within which she is held captive!
Wars will remain while human nature remains. I believe in my soul in cooperation, in arbitration; but the soldier's occupation we cannot say is gone until human nature is gone.
There surely is in human nature an inherent propensity to extract all the good out of all the evil.
I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image.
Theories that go counter to the facts of human nature are foredoomed.