To destroy a standing crop goes against the soundest instincts of human nature.
Henry Cantwell WallaceThe capacity to suffer varies more than anything that I have observed in human nature.
Margot AsquithThat's the thing about Mother Nature, she really doesn't care what economic bracket you're in.
Whoopi GoldbergMany artists and scholars have pointed out that ultimately art depends on human nature.
Steven PinkerIn natural science the principles of truth ought to be confirmed by observation.
Linnaeus' Philosophia Botanica